-50.91% is the change from 656 to 322
Calculation steps:
[( 322 - 656 ) ÷ 656] x 100 = -50.91%
Formula
Percentage change = [(322 - 656) / 656] x 100
Subtract the new number by the original number
322 - 656 = -334
-334 ÷ 656 = -0.5091463414634146
-0.5091463414634146 x 100 = -50.91%