-40.38% is the change from 317 to 189
Calculation steps:
[( 189 - 317 ) ÷ 317] x 100 = -40.38%
Formula
Percentage change = [(189 - 317) / 317] x 100
Subtract the new number by the original number
189 - 317 = -128
-128 ÷ 317 = -0.4037854889589905
-0.4037854889589905 x 100 = -40.38%