I've encountered an issue when altering the formatting applied on negative values to match the user locale in https://github.com/Automattic/woocommerce-payments/issues/6700 and saw that the negative sign is hardcoded on HTML output for some amounts. This creates a problem for applying the multi currency overrides with hooks to wc_price function, as some locales such as nl_BE, no_NO put the negative sign when formatting negative amounts in the EUR currency, like € -100.00. To fix this, the negative amount must be provided to wc_price, so it can alter the format accordingly.
I've encountered an issue when altering the formatting applied on negative values to match the user locale in https://github.com/Automattic/woocommerce-payments/issues/6700 and saw that the negative sign is hardcoded on HTML output for some amounts. This creates a problem for applying the multi currency overrides with hooks to
wc_pricefunction, as some locales such asnl_BE,no_NOput the negative sign when formatting negative amounts in the EUR currency, like€ -100.00. To fix this, the negative amount must be provided towc_price, so it can alter the format accordingly.https://github.com/Automattic/woocommerce-subscriptions-core/blob/2d7e58db1c5ef772f0a89372497e228d3c73ffff/includes/wcs-cart-functions.php#L311
There might be other instances of this, but I could only find this one via code search.