-22.32% is the change from 551 to 428
Calculation steps:
[( 428 - 551 ) ÷ 551] x 100 = -22.32%
Formula
Percentage change = [(428 - 551) / 551] x 100
Subtract the new number by the original number
428 - 551 = -123
-123 ÷ 551 = -0.22323049001814882
-0.22323049001814882 x 100 = -22.32%