-20.44% is the change from 827 to 658
Calculation steps:
[( 658 - 827 ) ÷ 827] x 100 = -20.44%
Formula
Percentage change = [(658 - 827) / 827] x 100
Subtract the new number by the original number
658 - 827 = -169
-169 ÷ 827 = -0.20435308343409916
-0.20435308343409916 x 100 = -20.44%