-47.82% is the change from 550 to 287
Calculation steps:
[( 287 - 550 ) ÷ 550] x 100 = -47.82%
Formula
Percentage change = [(287 - 550) / 550] x 100
Subtract the new number by the original number
287 - 550 = -263
-263 ÷ 550 = -0.4781818181818182
-0.4781818181818182 x 100 = -47.82%