-52.64% is the change from 663 to 314
Calculation steps:
[( 314 - 663 ) ÷ 663] x 100 = -52.64%
Formula
Percentage change = [(314 - 663) / 663] x 100
Subtract the new number by the original number
314 - 663 = -349
-349 ÷ 663 = -0.526395173453997
-0.526395173453997 x 100 = -52.64%