-67.54% is the change from 955 to 310
Calculation steps:
[( 310 - 955 ) ÷ 955] x 100 = -67.54%
Formula
Percentage change = [(310 - 955) / 955] x 100
Subtract the new number by the original number
310 - 955 = -645
-645 ÷ 955 = -0.675392670157068
-0.675392670157068 x 100 = -67.54%