-37.85% is the change from 317 to 197
Calculation steps:
[( 197 - 317 ) ÷ 317] x 100 = -37.85%
Formula
Percentage change = [(197 - 317) / 317] x 100
Subtract the new number by the original number
197 - 317 = -120
-120 ÷ 317 = -0.3785488958990536
-0.3785488958990536 x 100 = -37.85%