Actually they can because the figures are heavily censored in Russia. The deficit is what counts in this matter, it measures what the government is spending vs its revenue from all sources.
Russia swings to $29 bln first-quarter budget deficit
Russia's federal budget balance sank to a deficit of 2.4 trillion roubles ($29 billion) in the first quarter of the year as Moscow spent heavily and energy revenues fell, the finance ministry said on Friday.www.reuters.com
They can't fake trade, 'cause another country keeps records too, and insurance companies also keep records of shipments.
They can only fake their domestic market.
Also, that video which claims Russia's earnings have dipped by 49%, it's incomplete. He should have used figures from 2021 as well. 'Cause what he doesn't mention is Russia's earnings increased drastically due to oil prices increasing to $120 post war. And that 49% dip is from a very high peak. $120 to $90 is a 50% dip after all. Had he shown data from 2021, then his video would have sounded very different.