Trying to do a forecast. I want to take the most recent 8 weeks and trim out the highest and lowest value. This would give me 6 weeks of data. Most recent two weeks would be weighted at 25%, middle two weeks would be weighted at 15% and oldest two weeks would be at 10%.
We tried to do the forecast with the Trim Mean formula, which would drop the high and low value, but this gives equal weighted to each of the six weeks.
We believe that weighting the stores will show us changes in the business sooner.
In the example below, I got the weighted average, but I had to manually take out the mIn and Max from my data set. I need to figure out a way to do this with a formula or a set of formulas.
We tried to do the forecast with the Trim Mean formula, which would drop the high and low value, but this gives equal weighted to each of the six weeks.
We believe that weighting the stores will show us changes in the business sooner.
In the example below, I got the weighted average, but I had to manually take out the mIn and Max from my data set. I need to figure out a way to do this with a formula or a set of formulas.
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2023 | 2023 | 2023 | 2023 | 2023 | 2023 | 2023 | 2023 | 10% | 10% | 15% | 15% | 25% | 25% | ||||||||||
| Wk5 | Wk6 | Wk7 | Wk8 | Wk9 | Wk10 | Wk11 | Wk12 | Trim Mean | Min | Max | Wgt Avg | ||||||||||||
36316 | 55% | 13% | 19% | 33% | 22% | 22% | 45% | 22% | 27.1% | 13% | 55% | 19% | 33% | 22% | 22% | 45% | 22% | 28.5% | |||||
36536 | 13% | 17% | 27% | 29% | -3% | 19% | 18% | 10% | 17.2% | -3% | 29% | 13% | 17% | 27% | 19% | 18% | 10% | 16.8% | |||||
36571 | 5% | -2% | -4% | -5% | 6% | -1% | -3% | -4% | -1.5% | -5% | 6% | 5% | -2% | -4% | -1% | -3% | -4% | -2.2% |
