-22.15% is the change from 307 to 239
Calculation steps:
[( 239 - 307 ) ÷ 307] x 100 = -22.15%
Formula
Percentage change = [(239 - 307) / 307] x 100
Subtract the new number by the original number
239 - 307 = -68
-68 ÷ 307 = -0.22149837133550487
-0.22149837133550487 x 100 = -22.15%