2833.33% is the change from 18 to 528
Calculation steps:
[( 528 - 18 ) ÷ 18] x 100 = 2833.33%
Formula
Percentage change = [(528 - 18) / 18] x 100
Subtract the new number by the original number
528 - 18 = 510
510 ÷ 18 = 28.333333333333332
28.333333333333332 x 100 = 2833.33%