2092.5% is the change from 40 to 877
Calculation steps:
[( 877 - 40 ) ÷ 40] x 100 = 2092.5%
Formula
Percentage change = [(877 - 40) / 40] x 100
Subtract the new number by the original number
877 - 40 = 837
837 ÷ 40 = 20.925
20.925 x 100 = 2092.5%
Example