-27.09% is the change from 657 to 479
Calculation steps:
[( 479 - 657 ) ÷ 657] x 100 = -27.09%
Formula
Percentage change = [(479 - 657) / 657] x 100
Subtract the new number by the original number
479 - 657 = -178
-178 ÷ 657 = -0.2709284627092846
-0.2709284627092846 x 100 = -27.09%