-9.21% is the change from 554 to 503
Calculation steps:
[( 503 - 554 ) ÷ 554] x 100 = -9.21%
Formula
Percentage change = [(503 - 554) / 554] x 100
Subtract the new number by the original number
503 - 554 = -51
-51 ÷ 554 = -0.09205776173285199
-0.09205776173285199 x 100 = -9.21%