-8.86% is the change from 237 to 216
Calculation steps:
[( 216 - 237 ) ÷ 237] x 100 = -8.86%
Formula
Percentage change = [(216 - 237) / 237] x 100
Subtract the new number by the original number
216 - 237 = -21
-21 ÷ 237 = -0.08860759493670886
-0.08860759493670886 x 100 = -8.86%