-81.98% is the change from 827 to 149
Calculation steps:
[( 149 - 827 ) ÷ 827] x 100 = -81.98%
Formula
Percentage change = [(149 - 827) / 827] x 100
Subtract the new number by the original number
149 - 827 = -678
-678 ÷ 827 = -0.8198307134220073
-0.8198307134220073 x 100 = -81.98%