Board Thread:Questions and Answers/@comment-26522571-20150628142802/@comment-24577221-20150819234032

The rates change linearly with monster level and happiness, so a simple chart with the rate for each monster at 100% happiness and level 15 wouldn't be meaningless. Add more columns with max coins and time-to-max, again for L15 and 100% happiness... could do. It would be somewhat subject to misinterpretation, though.