-30.34% is the change from 656 to 457
Calculation steps:
[( 457 - 656 ) ÷ 656] x 100 = -30.34%
Formula
Percentage change = [(457 - 656) / 656] x 100
Subtract the new number by the original number
457 - 656 = -199
-199 ÷ 656 = -0.30335365853658536
-0.30335365853658536 x 100 = -30.34%