-84.3% is the change from 688 to 108
Calculation steps:
[( 108 - 688 ) ÷ 688] x 100 = -84.3%
Formula
Percentage change = [(108 - 688) / 688] x 100
Subtract the new number by the original number
108 - 688 = -580
-580 ÷ 688 = -0.8430232558139535
-0.8430232558139535 x 100 = -84.3%