1583.33% is the change from 18 to 303
Calculation steps:
[( 303 - 18 ) ÷ 18] x 100 = 1583.33%
Formula
Percentage change = [(303 - 18) / 18] x 100
Subtract the new number by the original number
303 - 18 = 285
285 ÷ 18 = 15.833333333333334
15.833333333333334 x 100 = 1583.33%