-66.98% is the change from 636 to 210
Calculation steps:
[( 210 - 636 ) ÷ 636] x 100 = -66.98%
Formula
Percentage change = [(210 - 636) / 636] x 100
Subtract the new number by the original number
210 - 636 = -426
-426 ÷ 636 = -0.6698113207547169
-0.6698113207547169 x 100 = -66.98%