Greasy Fork

Searching for a tampermonkey script, paying paypall/skrill

Hey, I'm looking for a very simple script for tampermonkey. Essentially what it would do it take take two values from a website, subtract the values and display result. Anyway I'm willing to pay 5 bucks/euros on skrill/paypall for it :p

Please send PM if you are interested, for an experienced user, shouldn't prolly take longer than a few minutes (though I'm guessing here as I'm too stupid to understand coding :( )