3261.11% is the change from 18 to 605
Calculation steps:
[( 605 - 18 ) ÷ 18] x 100 = 3261.11%
Formula
Percentage change = [(605 - 18) / 18] x 100
Subtract the new number by the original number
605 - 18 = 587
587 ÷ 18 = 32.611111111111114
32.611111111111114 x 100 = 3261.11%