-91.48% is the change from 657 to 56
Calculation steps:
[( 56 - 657 ) ÷ 657] x 100 = -91.48%
Formula
Percentage change = [(56 - 657) / 657] x 100
Subtract the new number by the original number
56 - 657 = -601
-601 ÷ 657 = -0.9147640791476408
-0.9147640791476408 x 100 = -91.48%