-8.28% is the change from 676 to 620
Calculation steps:
[( 620 - 676 ) ÷ 676] x 100 = -8.28%
Formula
Percentage change = [(620 - 676) / 676] x 100
Subtract the new number by the original number
620 - 676 = -56
-56 ÷ 676 = -0.08284023668639054
-0.08284023668639054 x 100 = -8.28%