-62.44% is the change from 663 to 249
Calculation steps:
[( 249 - 663 ) ÷ 663] x 100 = -62.44%
Formula
Percentage change = [(249 - 663) / 663] x 100
Subtract the new number by the original number
249 - 663 = -414
-414 ÷ 663 = -0.6244343891402715
-0.6244343891402715 x 100 = -62.44%