AAI ATC Junior Executive 27 Jul 2022 Shift 2 Paper

Refer to the following letter, number, symbol series and answer the question that follows.
(Left) 3 ∞ M 6 R Y Ω 4 D π S 2 @ 7 K E 5 & B % G (Right)
If all the letters are deleted from the given series, what will be the seventh element from the right end?