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Math Help Needed for my job
In all my years here, I don't think I have ever seen anyone ask a work question, but I am so frustrated right now and there are so many people on this forum that are WAY smarter than me.
I am trying to develop an index that will allow me to evaluate share growth for a large amount of sales people. I want to compare the share growth of our brands at a sales rep level versus the share growth of the same products nationally. In other words, is the sales rep I'm evaluating growing their share as fast as the national growth. To add a wrinkle to the equation, I want to also factor in share opportunity. For instance, it is much easier to grow 1 share pt when your share is 20% vs. growing 1 share pt when your share is 60%. I have absolutely no problem with the formula when both the sales rep and the national share growth are positive. Where I run into trouble is when the share growth for either the rep or national is negative. Here is an example of both being positive and the calculation: Rep share this year 20%, Rep share last year 18% National share this year 10%, National share last year 9% My formula is ((20%-18%)/82%)/((10%-9%)/91%) =2.219 telling me the rep is growing their share 2.2 times faster than national. Time for a nice bonus! In the above the 82% represents the max the share can grow for the rep (100%-18%) and the 91% is the max the national share can grow (100%-9%) What do I do if either one or both of the share changes are negative. My formula above does not work. For instance, if the rep share increased from 18% to 20% and the National share decreased from 9% to 8%. The result is a negative number even though the rep is really doing well. Any thoughts would be appreciated.
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Classe SSP 800, Classe CA5200, B&W 804D2, B&W 805 D2, Silenzio (x2), PS Audio P10, Esoteric F-05 Integrated Amp, PS Audio DirestStream Dac, Kef LS50, REL T5 sub, Nakamichi Dragon, Apple TV |
#2
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Lumin P1 streamer/DAC/preamp, Constellation Inspiration integrated TT: Michell Gyro SE MkII, SME V, Koetsu Urushi Vermilion, EAR324. Harbeth 30.2s, REL R-305, Shunyata Alpha V2 ICs, Alpha V2 SPs, Sigma XC, Sigma NRv2, Omega QR-s & Alpha NRv2 PCs, segmented Altaira SG stack w/ Alpha & Omega CGCs, Everest 8000 PD. Remote Server Room: Uptone EtherREGEN, AfterDark Master Clock & LPS, Alita, Battle Angel, (Akasa NUC Roon Core), iFi DC Purifiers (for SMPS used for Alita & router), Shunyata Gemini combo power distributor & Altaira-type CG GP-NR hub, Venom & Alpha CGCs, Shunyata NRv14 power cords for digital components. Last edited by Puma Cat; 09-20-2019 at 09:00 PM. |
#3
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Stephen - You are preaching to the choir. I have tried to convince the organization I work for (Fortune 50 company) that comparing this year to last year is not the way to go. However, it is like talking to a wall. I still live in the "Thats the way it has always been done" environment
So that leaves me no choice but to do my best with what I have. I'm trying my best to at least make this fair and equitable for everyone no matter how developed your share is. In the past, a rep who had a 60% share at their customer and gained.9 share points while Nationally the same products had a 20% share and gained 1 share pt was rated below average. Its much easier to grow 1 share pt in a market that is underdeveloped vs. .9 share points in an overdeveloped one. Hopefully that helps explain why I used the word frustrating in my original post. Also, thank you for all of your thoughts.
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Classe SSP 800, Classe CA5200, B&W 804D2, B&W 805 D2, Silenzio (x2), PS Audio P10, Esoteric F-05 Integrated Amp, PS Audio DirestStream Dac, Kef LS50, REL T5 sub, Nakamichi Dragon, Apple TV |
#4
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The problem with the "Thats the way it has always been done" mentality is that it does not provide a path for kaizen (continuous improvement) nor does it allow the data to provide insight as to WHAT must be done and WHY. What's really hard is when you have hard data with full statistical analysis and p-values that tell you what the truth is and the degree of statistical confidence, and if it goes against management wants to believe, its like spitting into the wind. Its like telling them: these are facts of the universe: f=ma and the execs are saying, "No, we don't like that, we we want f≠ma". Deming was right; the reason most businesses (corporations) fail is not because how hard "the people who work" work, but because of the incompetence of the executive management. Best of luck!
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Lumin P1 streamer/DAC/preamp, Constellation Inspiration integrated TT: Michell Gyro SE MkII, SME V, Koetsu Urushi Vermilion, EAR324. Harbeth 30.2s, REL R-305, Shunyata Alpha V2 ICs, Alpha V2 SPs, Sigma XC, Sigma NRv2, Omega QR-s & Alpha NRv2 PCs, segmented Altaira SG stack w/ Alpha & Omega CGCs, Everest 8000 PD. Remote Server Room: Uptone EtherREGEN, AfterDark Master Clock & LPS, Alita, Battle Angel, (Akasa NUC Roon Core), iFi DC Purifiers (for SMPS used for Alita & router), Shunyata Gemini combo power distributor & Altaira-type CG GP-NR hub, Venom & Alpha CGCs, Shunyata NRv14 power cords for digital components. |
#5
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Which is more like...
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Ivan FLORIDA MX136, MC1.2KW(10) MC2KW(2), MCD1100, MS750(2) MVP881, C1000C/P/T, MPC1500, HT-2 SUBS(2) HT3F(2) WS350(2) XRT2K, XCS2K, XR27(2) XCS350(2) JL GOTHAM v2 SUBS(2) SILENZIO MUSIC SERVER, LUMAGEN RADIANCE SCALER, SONY VPH-G90U 4K PROJECTOR, STEWART 120" MOTORIZED SCREEN, CINEMA-TECH SEATING, WW PLATINUM CABLES Reference System: ACCUPHASE A300 AMPS, C3900 PRE-AMP, DP1000 CD/SACD TRANSPORT, DC1000 DIGITAL PROCESSOR, DG-68 DIGITAL EQUALIZER, T1200 FM STEREO TUNER, PS1230 POWER SUPPLY, HRS-SXR CUSTOM RACK w/ M3X SHELVES, TAD REFERENCE ONE MK2 LOUDSPEAKERS, WW PLATINUM CABLES CAPE COD MX150, MC501(2) MC1.2KW(10) MC2301(2) MR88, MVP881, MCD1100, MDA1000, C1000C/P/T, MPC1500, ESOTERIC K-01X 30th ANNIVERSARY (BLACK) SACD/CD PLAYER, G02-X CLOCK, HT3F(2) XRT2K, XCS2K, XR27(2) JL GOTHAM v2 SUBS(2) JL FATHOM F113v2 SUBS(4) SOUND ANCHOR STANDS(2) KALEIDESCAPE STRATO & TERRA SERVERS 80-TB, LUMAGEN RADIANCE SCALER, SONY VPH-G90U 4K PROJECTOR, STEWART 120" SCREEN, SONUS FABER STRADIVARI, SILENZIO MUSIC SERVER, FORTRESS SEATING, WW PLATINUM CABLES Analog Rig: CLEARAUDIO INNOVATION WOOD, UNIVERSAL ARM w/ Da VINCI' CART, 2nd UNIVERSAL ARM w/ GOLDFINGER STATEMENT CART, HRS-MXR REFERENCE RACK-GLOSS BLACK w/ M3X SHELVES, AESTHETIX RHEA SIG PHONO-PRE, BRYSTON BHA-1 HEADPHONE AMP, WW PLATINUM CABLES Reference System: BURMESTER 911MK3 AMP(3), 088 PRE-AMP, 089 CD PLAYER, 100 PHONO PRE-AMP, 948 POWER CONDITIONER, ACCUPHASE DG-68 VOICING EQUALIZER, AVID ACUTUS REFERENCE SP TT, GRAHAM PHANTOM II SUPREME ARM, BENZ MICRO LP-S CART, GRANDIOSO P1X/D1X STACK, G1X RUBIDIUM MASTER CLOCK, N05 NETWORK PLAYER, SILENZIO MUSIC SERVER, HRS-SXR CUSTOM RACK w/ M3X SHELVES, SONUS FABER AIDA SPEAKERS, JL FATHOM F113v2 SUBS(2) SOUND ANCHOR STANDS(2) WW PLATINUM CABLES Library System: GRANDIOSO M1 MONOBLOCK AMPS, C1 LINESTAGE PRE-AMP, K1X CD/SACD PLAYER, G1 MASTER RUBIDIUM CLOCK, E02 PHONO-PRE, SILENZIO MUSIC SERVER, AERIAL ACOUSTICS 20T V2, AERIAL SW12 SUBS(2), CANTON REF K1’s, VPI HRX TT w/ SDS POWER SUPPLY, ORTOFON CADENZA BLACK CART, KLAUDIO RCM, SHUNYATA DENALI 6000/S v2, SHUNYATA OMEGA QR’s, WW PLATINUM CABLES Esoteric/Bryston System: ESOTERIC C02-X PRE-AMP, P-02X TRANSPORT, D02-X DAC, G02-X CLOCK, BRYSTON 28B3 CUBED MONOBLOCK AMPS(4), BRYSTON BHA-1 HEADPHONE AMP, SHUNYATA DENALI 6000/S v2(2) EVEREST 8000 POWER CONDITIONER(2) ALTAIRA CG & SG HUBS, AMR-DP777-SE DAC, SILENZIO MUSIC SERVER, TAD REFERENCE ONE MK2 LOUDSPEAKERS, QUADRASPIRE RACK, WW PLATINUM CABLES Accuphase/Canton System: ACCUPHASE E800 INTEGRATED, DP570 CD/SACD PLAYER, T1200 FM STEREO TUNER, DG-68 VOICING EQUALIZER, PS530 POWER SUPPLY, CANTON REF K3’s, CANTON REF K5’s, SILENZIO MUSIC SERVER, HRS MXR REFERENCE MAHOGHANY RACK w/ M3X2 SHELVES, WW GOLD CABLES |
#6
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How I wish we could just spin a wheel and that would be your rating. Might me more accurate than my calculations
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Classe SSP 800, Classe CA5200, B&W 804D2, B&W 805 D2, Silenzio (x2), PS Audio P10, Esoteric F-05 Integrated Amp, PS Audio DirestStream Dac, Kef LS50, REL T5 sub, Nakamichi Dragon, Apple TV |
#7
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I feel your pain. One sure way to have a really bad year was to have an exceptional year the previous year.
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#8
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Ding, ding, ding! Especially if it was a one-off project. “You need to find another project then.” |
#9
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#10
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McIntosh MA8000; McIntosh MC1502; Canton Vento Reference 1 DC; E.A.T. E-Flat; Soundsmith Paua Mk II; Technics SL 1210 MK5; Audio Technica AT-150 MLX; Tascam BR-20; Teac X1000R; Pioneer RT-707; Oppo UDP 205; Denon DCD A-100; HP All-In-One Touchscreen Server; JRiver MC 28; Woo Audio WA6; Shure SRH 1840; SVS SB 1000; Jolida 502BRC; Jolida JD9; VPI 16.5 RCM; Wireworld Oasis 8 Speaker Cables; Audoquest Columbia 72 DBS IC's; Panamax PM-5400 (source components only) |
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