-98.33% is the change from 657 to 11
Calculation steps:
[( 11 - 657 ) ÷ 657] x 100 = -98.33%
Formula
Percentage change = [(11 - 657) / 657] x 100
Subtract the new number by the original number
11 - 657 = -646
-646 ÷ 657 = -0.9832572298325722
-0.9832572298325722 x 100 = -98.33%