Peg the currency to the dollar

Good afternoon, I’d like to suggest pegging the balance to the dollar, with the ruble amount displayed dynamically based on the current exchange rate. For example, I sold skins for 75k rubles a week ago, which was worth 1,000 dollars. But because funds are now credited after 8 days and the exchange rate is plummeting, I received 920 dollars instead of 1,000. That’s an 8% loss out of nowhere. What will happen when the exchange rate plummets to 100–120? It would be better to lock in the rate at the time of sale and protect yourself. For example, a system like this works well on Liskins.