-89.65% is the change from 657 to 68
Calculation steps:
[( 68 - 657 ) ÷ 657] x 100 = -89.65%
Formula
Percentage change = [(68 - 657) / 657] x 100
Subtract the new number by the original number
68 - 657 = -589
-589 ÷ 657 = -0.8964992389649924
-0.8964992389649924 x 100 = -89.65%