981.97% is the change from 61 to 660
Calculation steps:
[( 660 - 61 ) ÷ 61] x 100 = 981.97%
Formula
Percentage change = [(660 - 61) / 61] x 100
Subtract the new number by the original number
660 - 61 = 599
599 ÷ 61 = 9.819672131147541
9.819672131147541 x 100 = 981.97%