-19.79% is the change from 955 to 766
Calculation steps:
[( 766 - 955 ) ÷ 955] x 100 = -19.79%
Formula
Percentage change = [(766 - 955) / 955] x 100
Subtract the new number by the original number
766 - 955 = -189
-189 ÷ 955 = -0.19790575916230366
-0.19790575916230366 x 100 = -19.79%