-39.03% is the change from 807 to 492
Calculation steps:
[( 492 - 807 ) ÷ 807] x 100 = -39.03%
Formula
Percentage change = [(492 - 807) / 807] x 100
Subtract the new number by the original number
492 - 807 = -315
-315 ÷ 807 = -0.3903345724907063
-0.3903345724907063 x 100 = -39.03%