Units sold $100$ million units

Revenue $200$

Variable costs

Materials $30$

Direct labor$($manufacturing$,$sales$)40$

Opearational costs$($manufacturing$,$inventory,delivery$)30$

Other variable costs $20$

Margin on Sales $80$

Fixed Costs

Marketing and advertising $10$

Research and development $10$

Other fixed costs$($e$.$g head office$)40$

Net margin $20$

QUESTION $1$a: What would be the absolute change in net margin if Pepita Disco increased advertising by $10\%$ and as a result had $10\%$ higher sales?

QUESTION $1$b: What would be the absolute change in net margin if Pepita Disco increased the price by $10\%$ with an elasticity $-1?$

QUESTION $1$c: What would be the absolute change in net margin if Pepita Disco increased the price by $10\%$ with an elasticity $-1\mathrm{.}7?$

QUESTION $1$d: What would be the absolute change in net margin if Pepita Disco lowered the price by $10\%$ with an elasticity $-1\mathrm{.}7?$

QUESTION $1$e: What would be the absolute change in net margin if Pepita Disco motivated salespeople to increase unit sales volume by $10\%$ with an elasticity $=-1\mathrm{.}7?$