946.97% is the change from 66 to 691
Calculation steps:
[( 691 - 66 ) ÷ 66] x 100 = 946.97%
Formula
Percentage change = [(691 - 66) / 66] x 100
Subtract the new number by the original number
691 - 66 = 625
625 ÷ 66 = 9.469696969696969
9.469696969696969 x 100 = 946.97%