2067.5% is the change from 40 to 867
Calculation steps:
[( 867 - 40 ) ÷ 40] x 100 = 2067.5%
Formula
Percentage change = [(867 - 40) / 40] x 100
Subtract the new number by the original number
867 - 40 = 827
827 ÷ 40 = 20.675
20.675 x 100 = 2067.5%
Example