What's a reasonable amount for such a licence? I agree that they should be paid for their work and benefit from its use, but not sure what the value per-artist would be.

A chance to play with spreadsheets is all the thanks I could ever want :D

The important formula is: =U20+(((20000/12)-$U$20)*2)/13 where U20 is the M12 value (1300 in your example)

@wearywithtoil.bsky.socialdocs.google.com/spreadsheets...

Linear growth years

Np, Will pick up in the am

@wearywithtoil.bsky.social if that's not what you want, edit that sheet to show me what you're looking for and I can try again later!

This is google sheets, but same principle. docs.google.com/spreadsheets...

Linear growth years

I'm not sure exactly what you're trying to do, but each other month is then the previous month +(y2-y1) /12

Sorry, m13=m12+(y2-y1) /12

Can't you put m12=10000, m13=m12+(y2-y1) ?