-6.7% is the change from 866 to 808
Calculation steps:
[( 808 - 866 ) ÷ 866] x 100 = -6.7%
Formula
Percentage change = [(808 - 866) / 866] x 100
Subtract the new number by the original number
808 - 866 = -58
-58 ÷ 866 = -0.06697459584295612
-0.06697459584295612 x 100 = -6.7%