If you are doing manual salaries, I found that it can be tricky. In some categories, you may have something like:
If you just keep adjusting, you could be cutting pay without noticing it.
I do each workgroup manually. By resting the cursor on the "save" icon next to each workgroup,the web address for the link comes up in the bottom bar (in Firefox) which shows the new salary eg
where 21000 is the suggested salary. I do not click unless it is an increase. Also, when I have dropped salaries (when I first went to manual) a warning came up about the drops for each affected workgroup. I am absolutely certain therefore that I have not lowered salaries.
I am now spending close to double on general campaigns to what I was spending jointly on route and general ones, which seems to have at least stablized the situation albeit at the lower level. So I am at a loss as to what is going on.