-19.69% is the change from 772 to 620
Calculation steps:
[( 620 - 772 ) ÷ 772] x 100 = -19.69%
Formula
Percentage change = [(620 - 772) / 772] x 100
Subtract the new number by the original number
620 - 772 = -152
-152 ÷ 772 = -0.19689119170984457
-0.19689119170984457 x 100 = -19.69%