-69.78% is the change from 728 to 220
Calculation steps:
[( 220 - 728 ) ÷ 728] x 100 = -69.78%
Formula
Percentage change = [(220 - 728) / 728] x 100
Subtract the new number by the original number
220 - 728 = -508
-508 ÷ 728 = -0.6978021978021978
-0.6978021978021978 x 100 = -69.78%