-23.42% is the change from 679 to 520
Calculation steps:
[( 520 - 679 ) ÷ 679] x 100 = -23.42%
Formula
Percentage change = [(520 - 679) / 679] x 100
Subtract the new number by the original number
520 - 679 = -159
-159 ÷ 679 = -0.2341678939617084
-0.2341678939617084 x 100 = -23.42%