-15.43% is the change from 810 to 685
Calculation steps:
[( 685 - 810 ) ÷ 810] x 100 = -15.43%
Formula
Percentage change = [(685 - 810) / 810] x 100
Subtract the new number by the original number
685 - 810 = -125
-125 ÷ 810 = -0.15432098765432098
-0.15432098765432098 x 100 = -15.43%