-39.34% is the change from 854 to 518
Calculation steps:
[( 518 - 854 ) ÷ 854] x 100 = -39.34%
Formula
Percentage change = [(518 - 854) / 854] x 100
Subtract the new number by the original number
518 - 854 = -336
-336 ÷ 854 = -0.39344262295081966
-0.39344262295081966 x 100 = -39.34%