-72.13% is the change from 818 to 228
Calculation steps:
[( 228 - 818 ) ÷ 818] x 100 = -72.13%
Formula
Percentage change = [(228 - 818) / 818] x 100
Subtract the new number by the original number
228 - 818 = -590
-590 ÷ 818 = -0.7212713936430318
-0.7212713936430318 x 100 = -72.13%