Stripe fees example rounding error

[sdggq]

The fee example says $3.29, when it should say $3.3. Since according to the formulas in “Learn More” link, the fee amount should be $3.2955715756950000 - rounds up to 3.3…

Verified with forumla in excel and 3rd party calculator Stripe Fee Calculator (2023) - Easily Calculate Stripe Fees & What to Charge.

Is this by design? Same rounding mechanism used in other calculations?

[hillel]

Hi,

Thanks for catching this, we’ll make sure it’s corrected.

Do you see the same issue with an actual invoice or it just the help message?

[sdggq]

I’m in the process of figuring out how to include CC processing fees after the sales tax (currently it is added before) - that throws off the math a bit, so I didn’t look into the rounding on actual invoices.

[hillel]

Ok, we’ll look into it.

[sdggq]

Invoice Ninja mathematical rules

Hi We came across mathematical discrepancies between our website (using plugin) and Invoice Ninja. According to developer of the plugin, if the number you are rounding is followed by 5, 6, 7, 8, or 9, round the number up. If the number you are rounding is followed by 0, 1, 2, 3, or 4, round the number down. Invoice Ninja seems to have a different rule, which is numbers 1-4 get rounded down, 5 get removed without changing the number, and numbers 6-9 will be rounded up. I personally remember be…

[hillel]

Thanks but I think this is a different issue. The problem here is with the calculation itself not the rounding.

[hillel]

I think you may be replying to the wrong post.