-21% is the change from 781 to 617
Calculation steps:
[( 617 - 781 ) ÷ 781] x 100 = -21%
Formula
Percentage change = [(617 - 781) / 781] x 100
Subtract the new number by the original number
617 - 781 = -164
-164 ÷ 781 = -0.20998719590268886
-0.20998719590268886 x 100 = -21%