-41.23% is the change from 587 to 345
Calculation steps:
[( 345 - 587 ) ÷ 587] x 100 = -41.23%
Formula
Percentage change = [(345 - 587) / 587] x 100
Subtract the new number by the original number
345 - 587 = -242
-242 ÷ 587 = -0.4122657580919932
-0.4122657580919932 x 100 = -41.23%