98 is 22.5% of 435.55555 (repeating number).
To find this answer, multiply 98 by 100 and divide the result by 22.5. This is the percentage formula (is over of equals the percentage over 100, is/of = p/100). All you need to do is plug in the number to the formula, multiply diagonally across where you have two known values, and then divide by the remaining known value to find the missing number.