Double check question 13 and try 14

The following information relates to Q13 - Q15 Internal Income Statements for y/e 30/9/21 Dumfries Annan Em Em Revenue 50 50 Variable costs 10 30 Contribution 40 20 Fixed costs 30 10 Profit 10 10 Q13 What was Dumfries's contribution margin % 400% 80% DOWD 40% 75% Q14 If Annan had doubled their activity what would their profit have been E30m E100m E20m E10m