-98.47% is the change from 588 to 9
Calculation steps:
[( 9 - 588 ) ÷ 588] x 100 = -98.47%
Formula
Percentage change = [(9 - 588) / 588] x 100
Subtract the new number by the original number
9 - 588 = -579
-579 ÷ 588 = -0.9846938775510204
-0.9846938775510204 x 100 = -98.47%