Is the price actually cheaper in my country?

Hello! I want to buy elden ring and it's dlc, on a US acc it shows the game to be 70 USD for both the game and dlc. But when I changed it to my actual country it was only 52 USD, the conversation rate checks out but both show the price as USD. Now if I want to buy the game via gift cards do I need a 50 dollar and 5 dollar steam gift card or will it not work? Thank you for your time.