-23.55% is the change from 310 to 237
Calculation steps:
[( 237 - 310 ) ÷ 310] x 100 = -23.55%
Formula
Percentage change = [(237 - 310) / 310] x 100
Subtract the new number by the original number
237 - 310 = -73
-73 ÷ 310 = -0.23548387096774193
-0.23548387096774193 x 100 = -23.55%