-53.1% is the change from 646 to 303
Calculation steps:
[( 303 - 646 ) ÷ 646] x 100 = -53.1%
Formula
Percentage change = [(303 - 646) / 646] x 100
Subtract the new number by the original number
303 - 646 = -343
-343 ÷ 646 = -0.5309597523219814
-0.5309597523219814 x 100 = -53.1%