-11.8% is the change from 551 to 486
Calculation steps:
[( 486 - 551 ) ÷ 551] x 100 = -11.8%
Formula
Percentage change = [(486 - 551) / 551] x 100
Subtract the new number by the original number
486 - 551 = -65
-65 ÷ 551 = -0.11796733212341198
-0.11796733212341198 x 100 = -11.8%