The company GLORIA SAC for the next year has the following information: Net sales$300,000,$variable cost$160,000$and fixed costs$11,000.$With the data indicated, calculate the operating profit for each one$($the data are independent$)$

a$)20\%$increase in sales volume.

b$)15\%$increase in fixed costs.

c$)10\%$decrease in sales volume.

d$)15\%$de aumento en los costos variables.

e$)13\%$increase in fixed costs and$14\%$decrease in variable costs.