-89.66% is the change from 551 to 57
Calculation steps:
[( 57 - 551 ) ÷ 551] x 100 = -89.66%
Formula
Percentage change = [(57 - 551) / 551] x 100
Subtract the new number by the original number
57 - 551 = -494
-494 ÷ 551 = -0.896551724137931
-0.896551724137931 x 100 = -89.66%