-33.23% is the change from 656 to 438
Calculation steps:
[( 438 - 656 ) ÷ 656] x 100 = -33.23%
Formula
Percentage change = [(438 - 656) / 656] x 100
Subtract the new number by the original number
438 - 656 = -218
-218 ÷ 656 = -0.3323170731707317
-0.3323170731707317 x 100 = -33.23%