-51.18% is the change from 807 to 394
Calculation steps:
[( 394 - 807 ) ÷ 807] x 100 = -51.18%
Formula
Percentage change = [(394 - 807) / 807] x 100
Subtract the new number by the original number
394 - 807 = -413
-413 ÷ 807 = -0.5117719950433705
-0.5117719950433705 x 100 = -51.18%