-16.79% is the change from 828 to 689
Calculation steps:
[( 689 - 828 ) ÷ 828] x 100 = -16.79%
Formula
Percentage change = [(689 - 828) / 828] x 100
Subtract the new number by the original number
689 - 828 = -139
-139 ÷ 828 = -0.1678743961352657
-0.1678743961352657 x 100 = -16.79%