803.03% is the change from 66 to 596
Calculation steps:
[( 596 - 66 ) ÷ 66] x 100 = 803.03%
Formula
Percentage change = [(596 - 66) / 66] x 100
Subtract the new number by the original number
596 - 66 = 530
530 ÷ 66 = 8.030303030303031
8.030303030303031 x 100 = 803.03%