How do customers use %, Qty and Amount fields to allocate for multiple distributions?

Summary:

This is primarily to understand how Self-Service Procurement users adjust distribution percentage. amount and quantity in case of multiple distributions.

Please help in understand -

1. As a user do you prefer updating more than one attribute (out of percentage, amount, and quantity) while splitting/editing a distribution?
2. Have you faced a scenario where one of these three attributes don't match with that at line level as shown below? In case, yes then how do you ensure that it all three matches to successfully submit the requisition?

Content (please ensure you mask any confidential information):

I have an item with price as USD 349. I created a requisition with 1 quantity.