-8.89% is the change from 551 to 502
Calculation steps:
[( 502 - 551 ) ÷ 551] x 100 = -8.89%
Formula
Percentage change = [(502 - 551) / 551] x 100
Subtract the new number by the original number
502 - 551 = -49
-49 ÷ 551 = -0.08892921960072596
-0.08892921960072596 x 100 = -8.89%