-57.77% is the change from 663 to 280
Calculation steps:
[( 280 - 663 ) ÷ 663] x 100 = -57.77%
Formula
Percentage change = [(280 - 663) / 663] x 100
Subtract the new number by the original number
280 - 663 = -383
-383 ÷ 663 = -0.5776772247360482
-0.5776772247360482 x 100 = -57.77%