-71.5% is the change from 772 to 220
Calculation steps:
[( 220 - 772 ) ÷ 772] x 100 = -71.5%
Formula
Percentage change = [(220 - 772) / 772] x 100
Subtract the new number by the original number
220 - 772 = -552
-552 ÷ 772 = -0.7150259067357513
-0.7150259067357513 x 100 = -71.5%