-57.16% is the change from 663 to 284
Calculation steps:
[( 284 - 663 ) ÷ 663] x 100 = -57.16%
Formula
Percentage change = [(284 - 663) / 663] x 100
Subtract the new number by the original number
284 - 663 = -379
-379 ÷ 663 = -0.5716440422322775
-0.5716440422322775 x 100 = -57.16%