Answer:
the first part of the question is missing, so I searched for similar ones:
sales price per unit = $150
variable costs per unit = $60
contribution margin per unit = $90
currently operating profit = (7,000 x $90) - $214,000 = $416,000
if advertising expenses increase, new operating revenue = (7,190 x $90) - $214,000 - $7,500 = $425,600
operating profit will increase by $425,600 - $416,000 = $9,600