Answer:
cost of good sold will increase by 20 percent
Step-by-step explanation:
given data
sales growth of 20 percent
cost of good sold = 80 percent of sales
to find out
cost of good sold
solution
As here cost of good sold will increase by 20 percent
because In a percentage of sales model
the expenses that is proportionate will be grow at same rate of the sales
so cost of good sold will increase by 20 percent