-62.9% is the change from 663 to 246
Calculation steps:
[( 246 - 663 ) ÷ 663] x 100 = -62.9%
Formula
Percentage change = [(246 - 663) / 663] x 100
Subtract the new number by the original number
246 - 663 = -417
-417 ÷ 663 = -0.6289592760180995
-0.6289592760180995 x 100 = -62.9%