-98.36% is the change from 548 to 9
Calculation steps:
[( 9 - 548 ) ÷ 548] x 100 = -98.36%
Formula
Percentage change = [(9 - 548) / 548] x 100
Subtract the new number by the original number
9 - 548 = -539
-539 ÷ 548 = -0.9835766423357665
-0.9835766423357665 x 100 = -98.36%