1967.5% is the change from 40 to 827
Calculation steps:
[( 827 - 40 ) ÷ 40] x 100 = 1967.5%
Formula
Percentage change = [(827 - 40) / 40] x 100
Subtract the new number by the original number
827 - 40 = 787
787 ÷ 40 = 19.675
19.675 x 100 = 1967.5%
Example