Final answer:
Levon's revenue market share is 22.05%, calculated by dividing his total monthly balloon revenue by the total market revenue.
Step-by-step explanation:
Levon's revenue market share is calculated by dividing his revenue by the total market revenue and then multiplying by 100 to get the percentage. Levon sells 315 balloons at $7.00 each, so his monthly revenue is 315 balloons × $7.00/balloon = $2,205. The total market sells 2000 balloons at an average price of $5.00 each, making the total market revenue 2000 × $5.00 = $10,000 per month. Therefore, Levon's revenue market share is ($2,205 / $10,000) × 100 = 22.05%.