This article states the cost to the budget of compensation and would appear to be enormous if correct
meduza.io
Russia’s payments to soldiers and their families amount to eight percent of federal spending, study finds — Meduza
The Russian government paid soldiers and their families between 2.75 trillion and 3 trillion rubles ($31 billion–$33.9 billion) in salaries and compensation payments between July 2023 and June 2024, according to a new estimate by the policy group Re:Russia.