-62.91% is the change from 550 to 204
Calculation steps:
[( 204 - 550 ) ÷ 550] x 100 = -62.91%
Formula
Percentage change = [(204 - 550) / 550] x 100
Subtract the new number by the original number
204 - 550 = -346
-346 ÷ 550 = -0.6290909090909091
-0.6290909090909091 x 100 = -62.91%