1236.07% is the change from 61 to 815
Calculation steps:
[( 815 - 61 ) ÷ 61] x 100 = 1236.07%
Formula
Percentage change = [(815 - 61) / 61] x 100
Subtract the new number by the original number
815 - 61 = 754
754 ÷ 61 = 12.360655737704919
12.360655737704919 x 100 = 1236.07%