-41.3% is the change from 586 to 344
Calculation steps:
[( 344 - 586 ) ÷ 586] x 100 = -41.3%
Formula
Percentage change = [(344 - 586) / 586] x 100
Subtract the new number by the original number
344 - 586 = -242
-242 ÷ 586 = -0.4129692832764505
-0.4129692832764505 x 100 = -41.3%