4200% is the change from 18 to 774
Calculation steps:
[( 774 - 18 ) ÷ 18] x 100 = 4200%
Formula
Percentage change = [(774 - 18) / 18] x 100
Subtract the new number by the original number
774 - 18 = 756
756 ÷ 18 = 42
42 x 100 = 4200%
Example