-90.08% is the change from 827 to 82
Calculation steps:
[( 82 - 827 ) ÷ 827] x 100 = -90.08%
Formula
Percentage change = [(82 - 827) / 827] x 100
Subtract the new number by the original number
82 - 827 = -745
-745 ÷ 827 = -0.9008464328899637
-0.9008464328899637 x 100 = -90.08%