The buying and selling commission schedule shown at the top of the next column is from an online discount brokerage firm. Taking into consideration the buying and selling commissions in this schedule, find the annual compound rate of interest earned by each investment in problem
Find the annual compound rate of interest earned by each investment in Problem.

An investor purchases 4(X) shares of stock at $48 per share, holds the stock for 6 years, and then sells the stock for $147 a share.

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Transaction Size $0-$1,500 $1,501-$6,000 $6,001-$22,000 $22.001-$50,000 $50,001-$500,000 $500,001+ Commission Rate $29 + 2.5% of principal $57 + 0.6% of principal $75 + 0.30% of principal $97 + 0.20% of principal $147 + 0.10% of principal $247 + 0.08% of principal