-27.44% is the change from 317 to 230
Calculation steps:
[( 230 - 317 ) ÷ 317] x 100 = -27.44%
Formula
Percentage change = [(230 - 317) / 317] x 100
Subtract the new number by the original number
230 - 317 = -87
-87 ÷ 317 = -0.2744479495268139
-0.2744479495268139 x 100 = -27.44%