The buying and selling commission schedule shown in the table 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.

An investor purchases 200 shares of stock at $28 per share, holds the stock for 4 years, and then sells the stock for $55 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 $292.5% 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