-17.76% is the change from 811 to 667
Calculation steps:
[( 667 - 811 ) ÷ 811] x 100 = -17.76%
Formula
Percentage change = [(667 - 811) / 811] x 100
Subtract the new number by the original number
667 - 811 = -144
-144 ÷ 811 = -0.17755856966707767
-0.17755856966707767 x 100 = -17.76%