-47.16% is the change from 668 to 353
Calculation steps:
[( 353 - 668 ) ÷ 668] x 100 = -47.16%
Formula
Percentage change = [(353 - 668) / 668] x 100
Subtract the new number by the original number
353 - 668 = -315
-315 ÷ 668 = -0.47155688622754494
-0.47155688622754494 x 100 = -47.16%