-65.72% is the change from 636 to 218
Calculation steps:
[( 218 - 636 ) ÷ 636] x 100 = -65.72%
Formula
Percentage change = [(218 - 636) / 636] x 100
Subtract the new number by the original number
218 - 636 = -418
-418 ÷ 636 = -0.6572327044025157
-0.6572327044025157 x 100 = -65.72%