-9.82% is the change from 611 to 551
Calculation steps:
[( 551 - 611 ) ÷ 611] x 100 = -9.82%
Formula
Percentage change = [(551 - 611) / 611] x 100
Subtract the new number by the original number
551 - 611 = -60
-60 ÷ 611 = -0.09819967266775777
-0.09819967266775777 x 100 = -9.82%