-41.09% is the change from 859 to 506
Calculation steps:
[( 506 - 859 ) ÷ 859] x 100 = -41.09%
Formula
Percentage change = [(506 - 859) / 859] x 100
Subtract the new number by the original number
506 - 859 = -353
-353 ÷ 859 = -0.4109429569266589
-0.4109429569266589 x 100 = -41.09%