-52.93% is the change from 835 to 393
Calculation steps:
[( 393 - 835 ) ÷ 835] x 100 = -52.93%
Formula
Percentage change = [(393 - 835) / 835] x 100
Subtract the new number by the original number
393 - 835 = -442
-442 ÷ 835 = -0.5293413173652695
-0.5293413173652695 x 100 = -52.93%