-64.74% is the change from 624 to 220
Calculation steps:
[( 220 - 624 ) ÷ 624] x 100 = -64.74%
Formula
Percentage change = [(220 - 624) / 624] x 100
Subtract the new number by the original number
220 - 624 = -404
-404 ÷ 624 = -0.6474358974358975
-0.6474358974358975 x 100 = -64.74%