RATINGS = { terrible: 0, poor: 5, good: 10, great: 15, excellent: 20 }.freeze def calculatetip(bill, service) service = service.downcase.to_sym service_percentage = RATINGS[service] return 'Rating Not Recognized' unless service_percentage tip = (bill.to_f * service_percentage.to_f / 100).ceil tip end
calculatetip(78, "good") => 8 calculatetip(50, "poor") => 3 calculatetip(125, "excellent") => 25
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calculatetip(78, "good") => 8
calculatetip(50, "poor") => 3
calculatetip(125, "excellent") => 25