-12% is the change from 550 to 484
Calculation steps:
[( 484 - 550 ) ÷ 550] x 100 = -12%
Formula
Percentage change = [(484 - 550) / 550] x 100
Subtract the new number by the original number
484 - 550 = -66
-66 ÷ 550 = -0.12
-0.12 x 100 = -12%
Example