-41.63% is the change from 663 to 387
Calculation steps:
[( 387 - 663 ) ÷ 663] x 100 = -41.63%
Formula
Percentage change = [(387 - 663) / 663] x 100
Subtract the new number by the original number
387 - 663 = -276
-276 ÷ 663 = -0.416289592760181
-0.416289592760181 x 100 = -41.63%