-12.89% is the change from 551 to 480
Calculation steps:
[( 480 - 551 ) ÷ 551] x 100 = -12.89%
Formula
Percentage change = [(480 - 551) / 551] x 100
Subtract the new number by the original number
480 - 551 = -71
-71 ÷ 551 = -0.12885662431941924
-0.12885662431941924 x 100 = -12.89%