-27.4% is the change from 657 to 477
Calculation steps:
[( 477 - 657 ) ÷ 657] x 100 = -27.4%
Formula
Percentage change = [(477 - 657) / 657] x 100
Subtract the new number by the original number
477 - 657 = -180
-180 ÷ 657 = -0.273972602739726
-0.273972602739726 x 100 = -27.4%