It's easy if you do the calculating to and from minutes yourself, getting the sheet to do it proved tougher Lol, just updated the timer to account for days
Just divide the amount of coins needed to instant finish by 20 and you have the amount of hours till free.... (when you have 10 helpers, it will be the final time)
Now with coins saved -o-meter
Just divide the amount of coins needed to instant finish by 20 and you have the amount of hours till free.... (when you have 10 helpers, it will be the final time)
coins/20=hours to free