-52.95% is the change from 848 to 399
Calculation steps:
[( 399 - 848 ) ÷ 848] x 100 = -52.95%
Formula
Percentage change = [(399 - 848) / 848] x 100
Subtract the new number by the original number
399 - 848 = -449
-449 ÷ 848 = -0.5294811320754716
-0.5294811320754716 x 100 = -52.95%