-40.68% is the change from 590 to 350
Calculation steps:
[( 350 - 590 ) ÷ 590] x 100 = -40.68%
Formula
Percentage change = [(350 - 590) / 590] x 100
Subtract the new number by the original number
350 - 590 = -240
-240 ÷ 590 = -0.4067796610169492
-0.4067796610169492 x 100 = -40.68%