-60.36% is the change from 550 to 218
Calculation steps:
[( 218 - 550 ) ÷ 550] x 100 = -60.36%
Formula
Percentage change = [(218 - 550) / 550] x 100
Subtract the new number by the original number
218 - 550 = -332
-332 ÷ 550 = -0.6036363636363636
-0.6036363636363636 x 100 = -60.36%