-1.08% is the change from 557 to 551
Calculation steps:
[( 551 - 557 ) ÷ 557] x 100 = -1.08%
Formula
Percentage change = [(551 - 557) / 557] x 100
Subtract the new number by the original number
551 - 557 = -6
-6 ÷ 557 = -0.010771992818671455
-0.010771992818671455 x 100 = -1.08%