Whether that was for two jets or 1 is unclear. But either way, Russia just lost billions.
That was for 2 aircraft, and it's the reason why the deal failed. But the Russian version of the A-50 is very old and trash. It was built during the Cold War. Their replacement system is the A-100.
Anyway, I'm not surprised. They must have gone too close. I've been saying for years that AWACS are becoming useless. Worse than useless, a liability. It can't survive a modern-era war.