Rounding Issue with Tax

[DevRaeph]

Rounding of taxed items is not correct.
Net Val = 4,99
Taxed Val = 5,99
Tax Amount = 20%

Tried to add Product with quantitiy 4, price in cents 499
Total = 23,95

With Calculator total = 23,96

Edit:
Found out there is a precision issue:

`$tax = round(499 * (20/100), 2) * 4; 
//Your function for calculation Taxes with one item it's working fine, with for there is a missung cent
  
  echo LaraCart::formatMoney(
        $tax,
       "de_AT.UTF-8",
       "EUR",
        false
    );`

Tax per item should be 1 exactily -> is rounded 99.8 

i would reccomend to use PHP Money lib, example:

  $money = Money::EUR(499);
    $taxAlt = $money->multiply((20/100),MONEY::ROUND_HALF_POSITIVE_INFINITY);
    echo LaraCart::formatMoney(
        $taxAlt->getAmount(),
       "de_AT.UTF-8",
       "EUR",
        false
    );

Outputs the exact 100

[lukepolo]

Ill be working on simplifying the rounding bit, it should only round once we get to the totals~

[lukepolo]

I have made the changes in the new branch , should be coming out soon. Note: this is a massive breaking change.