696.97% is the change from 66 to 526
Calculation steps:
[( 526 - 66 ) ÷ 66] x 100 = 696.97%
Formula
Percentage change = [(526 - 66) / 66] x 100
Subtract the new number by the original number
526 - 66 = 460
460 ÷ 66 = 6.96969696969697
6.96969696969697 x 100 = 696.97%