An invoice processing agent delivers a net monthly value of $4,458 when handling 1,000 interactions with a 65% success rate. Based on a platform cost of $1,500 and a loaded staff cost of $55 per hour, the cost per successful outcome is $2.31. This calculation includes the time saved on automated tasks minus the necessary human review and escalation time.
True ROI depends on the balance between automated resolution and human intervention. While the agent saves 12 minutes per outcome, each success still requires two minutes of human review, and 35% of cases are escalated to a person. These factors are essential to understanding the actual labor value of the 108 hours saved each month.
Agent ROI worked example
Worked example for Invoice Processing Agent using stated NetLift assumptions:
| Input (stated assumption) |
Value |
| Interactions handled per month |
1,000 |
| Accepted / successful outcomes |
65% |
| Escalated to a person |
35% |
| Staff minutes saved per accepted outcome |
12 min |
| Human review per accepted outcome |
2 min |
| Loaded staff cost |
$55/hour |
| Agent platform cost per month |
$1,500 (stated assumption) |
| Computed result |
Value |
| Successful outcomes per month |
650 |
| Cost per successful outcome |
$2.31 |
| Net staff time saved |
108 h / month |
| Labour value of time saved |
$5,958 / month |
| Current net value |
$4,458 / month |
Escalation, review and rework are part of the true cost of an AI agent. Track them — an agent that resolves fewer tickets with less rework can beat one that closes more tickets badly.
What defines the true cost of an outcome?
Developing or buying an agent involves more than the subscription fee. The cost per successful outcome must include the price of human review for accepted work and the cost of handling escalations. In this model, the $2.31 unit cost is a fully loaded figure that reflects both the $1,500 monthly platform spend and the labor required to oversee the AI's output.
How do escalations and reviews impact net value?
An agent that processes high volumes poorly can be more expensive than a slower, more accurate one. With a 35% escalation rate, over a third of the workload still requires manual processing. Net value is only realized when the labor value of time saved ($5,958 in this example) significantly outweighs the platform cost and the time staff spend on review and rework. Improving the success rate directly reduces the unit cost and increases monthly returns.
NetLift measures AI value by comparing the time work takes with AI against a verified manual baseline. By tracking the deterministic shift in workload and accounting for human review time, NetLift assigns an Evidence Quality grade to your ROI. This data allows operations leaders to move past estimates and decide whether to Expand or Improve an agent based on its actual impact on labor capacity.