-20% is the change from 955 to 764
Calculation steps:
[( 764 - 955 ) ÷ 955] x 100 = -20%
Formula
Percentage change = [(764 - 955) / 955] x 100
Subtract the new number by the original number
764 - 955 = -191
-191 ÷ 955 = -0.2
-0.2 x 100 = -20%
Example