-66.03% is the change from 633 to 215
Calculation steps:
[( 215 - 633 ) ÷ 633] x 100 = -66.03%
Formula
Percentage change = [(215 - 633) / 633] x 100
Subtract the new number by the original number
215 - 633 = -418
-418 ÷ 633 = -0.660347551342812
-0.660347551342812 x 100 = -66.03%