The financial information of CIB inc. look like this:

Balance at the start of year XX + 1 (in millions of dollars)

Sales $ 1,000,000

Variable costs (28%) 280,000

Fixed operating costs 420,000

Earnings before interest and taxes 300,000

Interest 120,000 Profits before taxes 180,000

Tax (50%) 72,000

Net profit 108,000

Earnings per share (54,000 shares) $ 2

a) Calculate and interpret the operating leverage ratio at the company's current sales level.

b) Calculate and interpret the financial leverage ratio at the company's current sales level.

c) Calculate and interpret the total leverage factor at the company's current sales level.

d) Estimate the change in company sales, in percentage and in dollars, so that earnings per common share will be $ 2.50 next year?