Answer:
$8,220
Explanation:
According to the scenario, computation of the given data are as follow:-
This month Sales = $15,000
Growth expect in future sales per month = $1,600
Next Month Sales  = Current Month Sales + Growth Expect In Future Sales Per Month
Variable Cost = Total Sale of Current Month × 40%
Gross Profit = Sales - Fixed Cost - Variable Cost
                                             Per Month Gross Profit
Particular  Month 1  Month  2	Month  3	Month  4	Month  5	Month  6	Month  7	
Sales ($)	16,600	18,200	19,800	21,400	23,000	24,600	26,200	
Less - Fixed cost($)	7,500	7,500	7,500	7,500	7,500	7,500	7,500	
Less-Variable cost ($)	6,640	7,280	7,920	8,560	9,200	9,840	10,480	
Gross profit ($)	2,460	3,420	4,380	5,340	6,300	7,260	8,220	
Gross profit in a single 7 month from now = $8,220