-38.75% is the change from 849 to 520
Calculation steps:
[( 520 - 849 ) ÷ 849] x 100 = -38.75%
Formula
Percentage change = [(520 - 849) / 849] x 100
Subtract the new number by the original number
520 - 849 = -329
-329 ÷ 849 = -0.3875147232037691
-0.3875147232037691 x 100 = -38.75%