-91.55% is the change from 781 to 66
Calculation steps:
[( 66 - 781 ) ÷ 781] x 100 = -91.55%
Formula
Percentage change = [(66 - 781) / 781] x 100
Subtract the new number by the original number
66 - 781 = -715
-715 ÷ 781 = -0.9154929577464789
-0.9154929577464789 x 100 = -91.55%