-40.77% is the change from 807 to 478
Calculation steps:
[( 478 - 807 ) ÷ 807] x 100 = -40.77%
Formula
Percentage change = [(478 - 807) / 807] x 100
Subtract the new number by the original number
478 - 807 = -329
-329 ÷ 807 = -0.4076827757125155
-0.4076827757125155 x 100 = -40.77%