-94.92% is the change from 590 to 30
Calculation steps:
[( 30 - 590 ) ÷ 590] x 100 = -94.92%
Formula
Percentage change = [(30 - 590) / 590] x 100
Subtract the new number by the original number
30 - 590 = -560
-560 ÷ 590 = -0.9491525423728814
-0.9491525423728814 x 100 = -94.92%