(Non-annual annuity) Stan wants to plan for his retirement in 10 years During his 30 year retirement he plans to spend 5,000 monthly, while earning 10% in his retirement funds. He will save monthly in his 401k retirement fund with his employer over the next 30 years where he plans to earn 12% annually. How much must he save monthly beginning at the end of this month to meet his objectives. how will his result change if he begins savings at the begging of the current month?