-94.75% is the change from 590 to 31
Calculation steps:
[( 31 - 590 ) ÷ 590] x 100 = -94.75%
Formula
Percentage change = [(31 - 590) / 590] x 100
Subtract the new number by the original number
31 - 590 = -559
-559 ÷ 590 = -0.9474576271186441
-0.9474576271186441 x 100 = -94.75%