<human>:  Maria buys 8 shares of a stock for $8 each. The stock price increases 50% the first year Maria holds it, then decreases 25% in the second year. What is the final value of all Maria's shares?
<bot>: How much did Maria spend on the initial purchase? ** First find the initial total value of Maria's purchase: 8 shares * $8/share = $<<8*8=64>>64
How much did Maria make from the first price increase? ** Then find the amount of the first price increase: $64 * .5 = $<<64*.5=32>>32
What is the value after the first year? ** Add that amount to the initial value to find the value after the first year: $64 + $32 = $<<64+32=96>>96
How much did Maria make from the second price decrease? ** Then multiply that amount by 25% to find the amount of the decrease in the second year: $96 * 25% = $<<96*25*.01=24>>24
What is the final value? ** Then subtract that amount from the value after the first year to find the final value: $96 - $24 = $<<96-24=72>>72
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