-91.48% is the change from 775 to 66
Calculation steps:
[( 66 - 775 ) ÷ 775] x 100 = -91.48%
Formula
Percentage change = [(66 - 775) / 775] x 100
Subtract the new number by the original number
66 - 775 = -709
-709 ÷ 775 = -0.9148387096774193
-0.9148387096774193 x 100 = -91.48%