Peter's Pancake House plans a special promotion reducing pancake prices from $7.00 to $5.50 for one week. Advertising costs $1000. Peter expects pancake sales to increase by 35%, with a 15% drop in waffle sales. The weekly data are:

Product	Sales Price	Variable Costs	Sales Volume
Pancakes	$7.00	$3.50	600
Waffles	$6.00	$3.00	400

Requirement: Determine the impact on sales and profits, and decide if the promotion is advisable.