-52.48% is the change from 827 to 393
Calculation steps:
[( 393 - 827 ) ÷ 827] x 100 = -52.48%
Formula
Percentage change = [(393 - 827) / 827] x 100
Subtract the new number by the original number
393 - 827 = -434
-434 ÷ 827 = -0.524788391777509
-0.524788391777509 x 100 = -52.48%