Formula
Month n cost = Current cost × [(1 + growth) × (1 + price change) × (1 − efficiency)]n
Total forecast cost is the sum of every projected month.
What the result means
The main result is the sum of projected monthly bills across the selected period. The final-month value shows the ending run rate, while the comparison measures the difference from holding today’s bill constant.
This is a planning model, not a provider quote. Enter contractual discounts and architecture changes through realistic price and efficiency assumptions.