How can you calculate the prices with 2 decimals, not with 4 decimals?

Question

How can you set in Magento2 that all the calculations you make on orders, invoices, price rules,…, to be done with 2 decimals not with 4 decimals?

Attention, I mean the calculation of prices and not the display of prices.

Answer 1

Follow the path /vendor/magento/module-tax/Model/Calculation/AbstractCalculator.php In the deltaRound() method, we need to remove the following code:

if ($round) {
    $roundPrice = $this->calculationTool->round($roundPrice);
}

Some methods by which that code can be removed:

• Class extension
• Create Plugin
• Create Patch

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Or the permanent declaration of the $round parameter as false.

$round = false