Calculation with round up

Question

hi, I'm using bellow script. my issue is if i do calculation separately with round up, result is not same. so i want edit my script get roundup total like bellow.

event.value = (this.getField("Tax").value / 100) * this.getField("M0").value;

event.value = (event.value <= 0)?"":event.value;

"Tax" field - 8.25%

"M0" = (J0 +K0 +L0)

so i want to do calculation like bellow.

(J0 * 8.25/100) = Result round up to two decimal places

(K0 * 8.25/100) = Result round up to two decimal places

And get total off above all 3 values.

Hope my explanation is clear & some can help me. thanks..

Karl Heinz Kremer · Answer

None of the calculations you show will round up to two decimal places. If you display only two places, it will round in general (down or up), so in order to always round up, you will have to do an extra step. The following function will always round up to two decimal places:

function round_up(n) {
    return Math.ceil(n*100)/100;
}

With that, you can then calculate your total based on the three individual results. The only remaining question is if you want to round the numbers J0, K0 and M0 to the desired resolution, or if you want to round the sum of these numbers, or the sum of the calculated percentages.

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