-62.14% is the change from 663 to 251
Calculation steps:
[( 251 - 663 ) ÷ 663] x 100 = -62.14%
Formula
Percentage change = [(251 - 663) / 663] x 100
Subtract the new number by the original number
251 - 663 = -412
-412 ÷ 663 = -0.6214177978883861
-0.6214177978883861 x 100 = -62.14%