Klarna Error “Bad value: total_tax_amount” and "tax_rate"

[albirs]

it seems like this is the same calculation for different vars ??

isotope-klarna-checkout/src/Dto/Surcharge.php

Lines 32 to 33 in 5dfd3d3

	$this->unit_price = (int) round($surcharge->total_price * 100);
	$this->total_amount = (int) round($surcharge->total_price * 100);

i fixed this with
$this->tax_rate = (int) round(($surcharge->total_price / $surcharge->tax_free_total_price - 1 ) * 10000);
in line 37

[d0p3fish]

This should be pushed to the master branch. It took me hours to figure out.
I had a follow-up error in ShippingOption.php while calculating the tax_amount.
isotope-klarna-checkout/src/Dto/ShippingOption.php

Changed to
$this->tax_amount = (int) round($includes->calculateAmountIncludedInPrice($this->price));

[richardhj]

Can you open the PR? :-)