-41.03% is the change from 585 to 345
Calculation steps:
[( 345 - 585 ) ÷ 585] x 100 = -41.03%
Formula
Percentage change = [(345 - 585) / 585] x 100
Subtract the new number by the original number
345 - 585 = -240
-240 ÷ 585 = -0.41025641025641024
-0.41025641025641024 x 100 = -41.03%