Answer: $196
Step-by-step explanation:
Let C = Commission from sales
Let S = Sales amount
From the question, C is directly proportional to S
C α S
C = k.S (where k is a constant)
k = C/S
When C = $112 and S = $800,
k = 112/800
k = 0.14
Therefore;
C = 0.14S
When S= $1400
C= 0.14*1400
C = $196
The commission if your sales are $1400 is $196