At a particular place. For example, "the Ukrainian are firing an average of 100 javelins a day, so we want to send them 9,000 javelins to get them through the next three months". Congress doesn't have to spill all the secrets publicly, just give us a sense that there is actual logic behind the numbers.
It would also be nice to see some coordination with our allies about who is doing what. Maybe that is happening, but it isn't being talked about.