This example uses invented amounts to explain the calculation. It is not a client case study, market average or Yes AI quote. Assume AUD1,000 upfront cost and AUD600 ongoing cost each month.
Suppose the measured benefit before AI operating costs is AUD0 in month one, AUD600 in month two and AUD900 in each later month. The cumulative position after setup is minus AUD1,000. After month one it is minus AUD1,600; after month two it remains minus AUD1,600; after month three it is minus AUD1,300.
If the later AUD300 monthly surplus continues unchanged, the total first turns positive in month eight, at AUD200. A slower ramp, additional setup work, higher usage or delayed customer payments pushes payback later. If the recurring benefit never exceeds recurring cost, there is no operating surplus to repay setup.