-89.8% is the change from 598 to 61
Calculation steps:
[( 61 - 598 ) ÷ 598] x 100 = -89.8%
Formula
Percentage change = [(61 - 598) / 598] x 100
Subtract the new number by the original number
61 - 598 = -537
-537 ÷ 598 = -0.8979933110367893
-0.8979933110367893 x 100 = -89.8%