Shipping weight rounded down instead of rounded up. ZC gets wrong rates.

Hi, I've noticed that ZenCart rounds down shipping weight to the nearest ounce when calculating shipping costs.

Is this supposed to happen?

I think it should round up to the next ounce instead of rounding down.

The cost difference from one ounce to the next may not seem like much, but when your profit margin is very small and you only charge actual shipping costs, it can really add up, especially in the following situations.

Total shipping weight shown in shipping estimator 0.84lbs(13.44oz). ZC gets rates for 13oz. Issues with this: USPS First-class shown as an option, anything over 13oz cannot be shipped as first class.

Total shipping weight shown in shipping estimator 1.03lbs(1lb 0.48oz) ZC gets rates for 1 pound. Issues with this: All carriers charge to the next full pound, even if just a tiny bit over the pound.

Does anyone know what needs to be edit to have ZC round up to the next ounce when calculating shipping cost?

Thanks.