5233.33% is the change from 15 to 800
Calculation steps:
[( 800 - 15 ) ÷ 15] x 100 = 5233.33%
Formula
Percentage change = [(800 - 15) / 15] x 100
Subtract the new number by the original number
800 - 15 = 785
785 ÷ 15 = 52.333333333333336
52.333333333333336 x 100 = 5233.33%