-20.31% is the change from 827 to 659
Calculation steps:
[( 659 - 827 ) ÷ 827] x 100 = -20.31%
Formula
Percentage change = [(659 - 827) / 827] x 100
Subtract the new number by the original number
659 - 827 = -168
-168 ÷ 827 = -0.20314389359129384
-0.20314389359129384 x 100 = -20.31%