-98.91% is the change from 551 to 6
Calculation steps:
[( 6 - 551 ) ÷ 551] x 100 = -98.91%
Formula
Percentage change = [(6 - 551) / 551] x 100
Subtract the new number by the original number
6 - 551 = -545
-545 ÷ 551 = -0.9891107078039928
-0.9891107078039928 x 100 = -98.91%