-16.95% is the change from 590 to 490
Calculation steps:
[( 490 - 590 ) ÷ 590] x 100 = -16.95%
Formula
Percentage change = [(490 - 590) / 590] x 100
Subtract the new number by the original number
490 - 590 = -100
-100 ÷ 590 = -0.1694915254237288
-0.1694915254237288 x 100 = -16.95%