Answer:
The total value of Tiffany's investments decreased by 2.84%.Step-by-step explanation:
First, let's calculate the new values of each type of fund after the changes:
High-risk funds: $1,000 + 30%*$1,000 = $1,300
Low-risk funds: $2,700 - 15%*$2,700 = $2,295
The total value of her investments before the changes was:
$2,700 + $1,000 = $3,700
The total value of her investments after the changes is:
$1,300 + $2,295 = $3,595
To find the percentage change, we can use the formula:
((new value - old value) / old value) * 100
Plugging in the numbers, we get:
(($3,595 - $3,700) / $3,700) * 100 = -2.84%
So the total value of Tiffany's investments decreased by 2.84%.