A binary win/lose system doesn't go well with the percentage of the report. I don't know what 98% of a report is, but I feel like if I got one I would struggle to tell the difference between that and 100%.
A report is not a portrait painting. I agree that the percentage is rather abstract at what this would entail in reality. And different persons would have different opinions about what constitutes a report done or not done. Surely you could write it in a way, that a mostly finished report would look almost indistinguishable from the finished product.
But it could also be a report where the last % actually concludes the report, like the sum of entries. It would be like an invoice listing all the items, but missing the sum you have to pay. Even if you have all the 99 items there, the crucial thing is the bottom line. And if you leave out some items, the bottom line would be incorrect. And some reports do need to be very correct.
I agree that replay value would be good. But I am not sure, if tiers of success would do that trick. The game could be expanded where this activity is one of many or repeated with different variations. The game is cute, but basically it is like a mini-game inside a simulation game, only that the lewd office game around it is missing.
Yeah, yeah, it does stand on its own among all those "games" that last a few minutes, nothing wrong about short funsies. But one can hope for games with actual game play and lewd content.