40000% is the change from 2 to 802
Calculation steps:
[( 802 - 2 ) ÷ 2] x 100 = 40000%
Formula
Percentage change = [(802 - 2) / 2] x 100
Subtract the new number by the original number
802 - 2 = 800
800 ÷ 2 = 400
400 x 100 = 40000%
Example