Whats the right formula to calc inventory turnover?
So for a monthly calc for Feb I would take COGS/Avg Inv = 15/Avg (17,14) = .96 and then for the 5 month window as sum (Jan - May COGS)/Average Jan to May Inv) = Sum(20,15,17,18,16)/avg(17,14,12,14,13)=6.14? And then the monthly calcs should add up to the 5 month inv turn over?
Jan | Feb | Mar | Apr | May | |
COGS | 20 | 15 | 17 | 18 | 16 |
INV | 17 | 14 | 12 | 14 | 13 |
So for a monthly calc for Feb I would take COGS/Avg Inv = 15/Avg (17,14) = .96 and then for the 5 month window as sum (Jan - May COGS)/Average Jan to May Inv) = Sum(20,15,17,18,16)/avg(17,14,12,14,13)=6.14? And then the monthly calcs should add up to the 5 month inv turn over?