-81.38% is the change from 827 to 154
Calculation steps:
[( 154 - 827 ) ÷ 827] x 100 = -81.38%
Formula
Percentage change = [(154 - 827) / 827] x 100
Subtract the new number by the original number
154 - 827 = -673
-673 ÷ 827 = -0.8137847642079806
-0.8137847642079806 x 100 = -81.38%