-51.42% is the change from 317 to 154
Calculation steps:
[( 154 - 317 ) ÷ 317] x 100 = -51.42%
Formula
Percentage change = [(154 - 317) / 317] x 100
Subtract the new number by the original number
154 - 317 = -163
-163 ÷ 317 = -0.5141955835962145
-0.5141955835962145 x 100 = -51.42%