1518% is the change from 50 to 809
Calculation steps:
[( 809 - 50 ) ÷ 50] x 100 = 1518%
Formula
Percentage change = [(809 - 50) / 50] x 100
Subtract the new number by the original number
809 - 50 = 759
759 ÷ 50 = 15.18
15.18 x 100 = 1518%
Example