-21.27% is the change from 837 to 659
Calculation steps:
[( 659 - 837 ) ÷ 837] x 100 = -21.27%
Formula
Percentage change = [(659 - 837) / 837] x 100
Subtract the new number by the original number
659 - 837 = -178
-178 ÷ 837 = -0.2126642771804062
-0.2126642771804062 x 100 = -21.27%