Demand Forecast Calculator
DFC v1.0
1,000
100
1000
2500
5000
7500
10000
5.0%
-20%
0%
5%
10%
20%
30%
1.2
0.5
0.75
1.0
1.2
1.5
2.0
6
1
6
12
18
24
95%
50%
60%
70%
80%
90%
99%
Forecast Demand
1,340 units
Forecast Accuracy
94.2%
Total Forecast
8,040 units
📊
Forecast Chart
Historical
Forecast
Confidence Range
Growth Rate
5.0%
Seasonality
1.20
Forecast Periods
6
Confidence Interval
±8.5%
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Forecast Benchmarks
Metric
Target
Current
Forecast Accuracy
> 90%
94.2%
Forecast Error
< 10%
5.8%
Confidence Level
> 90%
95%
Forecast Horizon
6 periods
6
📐
Formula
Forecast = Base Demand × (1 + Growth)^t × Seasonality
t = period number
Error = |Actual - Forecast| / Actual
Accuracy = 1 - Error
Higher confidence = wider forecast range
📋
Forecast Guide
- 1 Set current demand level
- 2 Adjust growth rate and seasonality
- 3 Choose forecast periods ahead
- 4 Review accuracy and confidence