Answer: $76600 will be left in his pension account.
Explanation: from the above let us find the total amount of pension earned for a month
(7/100) * $30000 = $2100
For 1 year the pension will be $2100 × 12 months = $25200
For 2 years = $25200 * 2 = $50400
For 3 years = $25200 * 3 = $76600
If he leaves after two years $76600 will be left in his pension account.