Explanation
We are given the following information:
• Amount at the beginning of an investment = $5500
,
• Percent decrease = 24.6%
We want to determine the decreased amount in dollars and the amount in his account at the end of the year.
We can determine the decreased amount with the formula below:

Therefore, the decreased amount can be calculated as:

Hence, the decreased amount is $1353.
At the end of last year, the amount left in his account can be calculated as follows:
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Hence, the year-end amount is $4147.