-18.32% is the change from 955 to 780
Calculation steps:
[( 780 - 955 ) ÷ 955] x 100 = -18.32%
Formula
Percentage change = [(780 - 955) / 955] x 100
Subtract the new number by the original number
780 - 955 = -175
-175 ÷ 955 = -0.18324607329842932
-0.18324607329842932 x 100 = -18.32%