Cavalary: Known issue, regarding sale pages. Seems to affect some more than others. There's a user fix for it. GOG ignores it despite being made aware of how to fix it a long time ago and is still "looking into the matter" (which is to say, probably aren't and expect users to learn to deal with it).
As for prices, make sure you don't check buy as gift first, since Ukraine gets huge regional discounts when buying normally but anyone getting discounts has to pay the base price when buying as gift. But since the redesign GOG also occasionally seems to reset one's location, language and/or currency, and the fix for that is to go to checkout (don't need to actually buy anything), as it checks again when you do that.

Solerdog: Can we have the pound back please, all i get is USD and EUR. I am British and we use thre pound

GOG.com: We are slightly adjusting local pricing due to changes in currency exchange rates.

Due to recent significant changes in currency conversion rates, we need to re-evaluate and update the local price values for the products on GOG.com. When preparing for the launch of our local currency payment options we've monitored the conversion rates for 18 months, looking at the average, and rounding it to the closest 0.09. That's how we came up with - for example - the 4.49€ equivalent for the $5.99 price-tag (with 4.51€ being the average converted price out of the previous 18 months). With fairness and clarity in mind, we decided to stick to the prices calculated this way, and only update them if a really considerable change in currency exchange rates would occur.

Unfortunately, this happened much sooner than anyone would expect. There are evident changes in the conversion rates for almost all currencies used on GOG.com. Therefore, we are forced to adjust some of the local-currency prices of the GOG.com catalog items.The prices are changing only by a small margin that allows us to compensate for the recent shifts in currency exchange rates. Here's a representative example of the pricing changes:

For $9,99 games:
- the EUR price was: 7,49; is: 7,99
- the GBP price was: 5,99; is: 6,19
- the AUD price was: 10,89; is: 11,49
- the RUB price was: 359; is: 389

The changes will come into effect on Wednesday, October 1 at 12:00PM GMT. We apologize for any inconvenience this change may be causing you. Please remember that you have the option to switch your preferred currency back to USD in the site's footer.

We will continue to monitor the exchange rates and apply further updates. Hopefully, we'll see the rates reverting to their more beneficial state soon, so that the next small price update can be in everyone's favor. We will communicate any future adjustments in the forum thread for this topic, so please follow it if you're interested in the future development for local prices.

GOG.com: We are slightly adjusting local pricing due to changes in currency exchange rates.

Due to recent significant changes in currency conversion rates, we need to re-evaluate and update the local price values for the products on GOG.com. When preparing for the launch of our local currency payment options we've monitored the conversion rates for 18 months, looking at the average, and rounding it to the closest 0.09. That's how we came up with - for example - the 4.49€ equivalent for the $5.99 price-tag (with 4.51€ being the average converted price out of the previous 18 months). With fairness and clarity in mind, we decided to stick to the prices calculated this way, and only update them if a really considerable change in currency exchange rates would occur.

Unfortunately, this happened much sooner than anyone would expect. There are evident changes in the conversion rates for almost all currencies used on GOG.com. Therefore, we are forced to adjust some of the local-currency prices of the GOG.com catalog items.The prices are changing only by a small margin that allows us to compensate for the recent shifts in currency exchange rates. Here's a representative example of the pricing changes:

For $9,99 games:
- the EUR price was: 7,49; is: 7,99
- the GBP price was: 5,99; is: 6,19
- the AUD price was: 10,89; is: 11,49
- the RUB price was: 359; is: 389

The changes will come into effect on Wednesday, October 1 at 12:00PM GMT. We apologize for any inconvenience this change may be causing you. Please remember that you have the option to switch your preferred currency back to USD in the site's footer.

We will continue to monitor the exchange rates and apply further updates. Hopefully, we'll see the rates reverting to their more beneficial state soon, so that the next small price update can be in everyone's favor. We will communicate any future adjustments in the forum thread for this topic, so please follow it if you're interested in the future development for local prices.

thestarlion:

neoengsheng:

tsunami2311:

Cavalary: Quite sure it's a charge by your card (or bank) which you'll find if you check the documentation for their respective fees, and would likely apply for any purchase you make from a store in another country if so (or a country other than a certain list of "allowed" ones if it's not just the US).

A quick search result I found seems to work out to exactly that, being a news piece from 2008 saying that Visa started charging 0.8% if no conversion is required and 1% if it is if the purchase is made from someone working with a non-US bank and that Mastercard has a similar fee, called cross-border charge, since 2005. And 4 cents is 0.8% of $4.98.