-30.96% is the change from 646 to 446
Calculation steps:
[( 446 - 646 ) ÷ 646] x 100 = -30.96%
Formula
Percentage change = [(446 - 646) / 646] x 100
Subtract the new number by the original number
446 - 646 = -200
-200 ÷ 646 = -0.30959752321981426
-0.30959752321981426 x 100 = -30.96%