-71.03% is the change from 818 to 237
Calculation steps:
[( 237 - 818 ) ÷ 818] x 100 = -71.03%
Formula
Percentage change = [(237 - 818) / 818] x 100
Subtract the new number by the original number
237 - 818 = -581
-581 ÷ 818 = -0.7102689486552567
-0.7102689486552567 x 100 = -71.03%