It looks like sales and marketing only includes driver incentive's due to driver referrals. Referrals are likely a low number compared to the 'guaranteed minim

It looks like sales and marketing only includes driver incentive's due to driver referrals. Referrals are likely a low number compared to the 'guaranteed minimum' incentives used in new markets. Looks like the other driver incentives may not be included in revenue? >This four percentage point improvement in Revenue as a Percentage of Bookings was driven by greater efficiency and effectiveness of driver incentives, which contributed approximately two percentage points, increased service fees and commissions, which contributed approximately one percentage point and revenue from the Select Express Drive Partner program, which contributed approximately one percentage point.