-91.72% is the change from 688 to 57
Calculation steps:
[( 57 - 688 ) ÷ 688] x 100 = -91.72%
Formula
Percentage change = [(57 - 688) / 688] x 100
Subtract the new number by the original number
57 - 688 = -631
-631 ÷ 688 = -0.9171511627906976
-0.9171511627906976 x 100 = -91.72%