-16.32% is the change from 772 to 646
Calculation steps:
[( 646 - 772 ) ÷ 772] x 100 = -16.32%
Formula
Percentage change = [(646 - 772) / 772] x 100
Subtract the new number by the original number
646 - 772 = -126
-126 ÷ 772 = -0.16321243523316062
-0.16321243523316062 x 100 = -16.32%