-7.93% is the change from 555 to 511
Calculation steps:
[( 511 - 555 ) ÷ 555] x 100 = -7.93%
Formula
Percentage change = [(511 - 555) / 555] x 100
Subtract the new number by the original number
511 - 555 = -44
-44 ÷ 555 = -0.07927927927927927
-0.07927927927927927 x 100 = -7.93%