A market grows from $400m to $440m. A firm's sales in this market rise from $60m to $70.4m. Find the market growth and the change in the firm's market share.
- Market growth = ($440m − $400m) ÷ $400m × 100 = 10%.
- Old market share = $60m ÷ $400m × 100 = 15%.
- New market share = $70.4m ÷ $440m × 100 = 16%.
Answer: The market grew by 10% and the firm's share rose from 15% to 16%.