-22.8% is the change from 307 to 237
Calculation steps:
[( 237 - 307 ) ÷ 307] x 100 = -22.8%
Formula
Percentage change = [(237 - 307) / 307] x 100
Subtract the new number by the original number
237 - 307 = -70
-70 ÷ 307 = -0.2280130293159609
-0.2280130293159609 x 100 = -22.8%