The total price for Store A is $1,272 ($1,200 + 6% sales tax), and with 15% gratuity, it becomes $1,464.60 ($1,272 + $192.60).
The total price for Store B is $1,444.50 ($1,350 + 7% sales tax), and with 15% gratuity, it becomes $1,661.18 ($1,444.50 + $216.68).
The difference in total price between the two repairs, including gratuity, is:
$1,661.18 - $1,464.60 = $196.58, which is closest to $198.38.
Therefore, the answer is $198.38.