Can't pass the mention of "do you know your revenue per mile": http://walkingworking.com/english/do-you-know-your-average-revenue-per-kilometer/ http://walkingw

Can't pass the mention of "do you know your revenue per mile": http://walkingworking.com/english/do-you-know-your-average-revenue-per-kilometer/ http://walkingworking.com/english/do-you-know-your-average-r... 6000 km is a lot of walking.