-17.06% is the change from 803 to 666
Calculation steps:
[( 666 - 803 ) ÷ 803] x 100 = -17.06%
Formula
Percentage change = [(666 - 803) / 803] x 100
Subtract the new number by the original number
666 - 803 = -137
-137 ÷ 803 = -0.1706102117061021
-0.1706102117061021 x 100 = -17.06%