-37.78% is the change from 315 to 196
Calculation steps:
[( 196 - 315 ) ÷ 315] x 100 = -37.78%
Formula
Percentage change = [(196 - 315) / 315] x 100
Subtract the new number by the original number
196 - 315 = -119
-119 ÷ 315 = -0.37777777777777777
-0.37777777777777777 x 100 = -37.78%