-16.81% is the change from 803 to 668
Calculation steps:
[( 668 - 803 ) ÷ 803] x 100 = -16.81%
Formula
Percentage change = [(668 - 803) / 803] x 100
Subtract the new number by the original number
668 - 803 = -135
-135 ÷ 803 = -0.16811955168119552
-0.16811955168119552 x 100 = -16.81%