-20.82% is the change from 778 to 616
Calculation steps:
[( 616 - 778 ) ÷ 778] x 100 = -20.82%
Formula
Percentage change = [(616 - 778) / 778] x 100
Subtract the new number by the original number
616 - 778 = -162
-162 ÷ 778 = -0.20822622107969152
-0.20822622107969152 x 100 = -20.82%