-79.36% is the change from 688 to 142
Calculation steps:
[( 142 - 688 ) ÷ 688] x 100 = -79.36%
Formula
Percentage change = [(142 - 688) / 688] x 100
Subtract the new number by the original number
142 - 688 = -546
-546 ÷ 688 = -0.7936046511627907
-0.7936046511627907 x 100 = -79.36%