-12.31% is the change from 707 to 620
Calculation steps:
[( 620 - 707 ) ÷ 707] x 100 = -12.31%
Formula
Percentage change = [(620 - 707) / 707] x 100
Subtract the new number by the original number
620 - 707 = -87
-87 ÷ 707 = -0.12305516265912306
-0.12305516265912306 x 100 = -12.31%