-98.73% is the change from 551 to 7
Calculation steps:
[( 7 - 551 ) ÷ 551] x 100 = -98.73%
Formula
Percentage change = [(7 - 551) / 551] x 100
Subtract the new number by the original number
7 - 551 = -544
-544 ÷ 551 = -0.9872958257713249
-0.9872958257713249 x 100 = -98.73%