-33.18% is the change from 657 to 439
Calculation steps:
[( 439 - 657 ) ÷ 657] x 100 = -33.18%
Formula
Percentage change = [(439 - 657) / 657] x 100
Subtract the new number by the original number
439 - 657 = -218
-218 ÷ 657 = -0.3318112633181126
-0.3318112633181126 x 100 = -33.18%