-0.72% is the change from 555 to 551
Calculation steps:
[( 551 - 555 ) ÷ 555] x 100 = -0.72%
Formula
Percentage change = [(551 - 555) / 555] x 100
Subtract the new number by the original number
551 - 555 = -4
-4 ÷ 555 = -0.007207207207207207
-0.007207207207207207 x 100 = -0.72%