-51.18% is the change from 805 to 393
Calculation steps:
[( 393 - 805 ) ÷ 805] x 100 = -51.18%
Formula
Percentage change = [(393 - 805) / 805] x 100
Subtract the new number by the original number
393 - 805 = -412
-412 ÷ 805 = -0.5118012422360249
-0.5118012422360249 x 100 = -51.18%