The sanctions hit Russia hard since it lost the best market for its resources - Europe. Delivery costs to China are high, and China buys only on the cheap, realizing that Putin has no alternatives.
ChatGPT:
In 2021, Russia’s total goods exports amounted to $492.3 billion. 2024 - $427.6 billion.
Costs have grown significantly in 2024 compared to 2021.
Russia's profit from exports according to ChatGPT:
2021: $175–180 billion
2024: $95–100 billion
Thus, sanctions have almost halved Russia’s export revenue according to ChatGPT (not the best source but the quickest).