-9.09% is the change from 682 to 620
Calculation steps:
[( 620 - 682 ) ÷ 682] x 100 = -9.09%
Formula
Percentage change = [(620 - 682) / 682] x 100
Subtract the new number by the original number
620 - 682 = -62
-62 ÷ 682 = -0.09090909090909091
-0.09090909090909091 x 100 = -9.09%