Step-by-step solution:
1. Calculate the decrease in dollars:
The decrease in the account value is a percentage of the original amount, so we can find it using the following formula:
Decrease in dollars = Original amount * Percentage decrease
Plugging in the values, we get:
Decrease in dollars = $7200 * 6.5%
Decrease in dollars = $7200 * (6.5 / 100)
Decrease in dollars = $468.00
2. Calculate the remaining amount in the account:
To find the final amount in the account, we simply subtract the decrease from the original amount:
Remaining amount = Original amount - Decrease in dollars
Remaining amount = $7200 - $468.00
Remaining amount = $6732.00
Therefore:
Heather's account value decreased by $468.00 at the end of the year.
She had $6732.00 remaining in her account at the end of last year.
