-0.91% is the change from 551 to 546
Calculation steps:
[( 546 - 551 ) ÷ 551] x 100 = -0.91%
Formula
Percentage change = [(546 - 551) / 551] x 100
Subtract the new number by the original number
546 - 551 = -5
-5 ÷ 551 = -0.009074410163339383
-0.009074410163339383 x 100 = -0.91%