-38.84% is the change from 847 to 518
Calculation steps:
[( 518 - 847 ) ÷ 847] x 100 = -38.84%
Formula
Percentage change = [(518 - 847) / 847] x 100
Subtract the new number by the original number
518 - 847 = -329
-329 ÷ 847 = -0.3884297520661157
-0.3884297520661157 x 100 = -38.84%