by earning do you mean how to earn or how much one can earn ?
I don't have personal experience, but there's a family (husband + wife) in Islamabad, who make daily life Vlogs (husband and wife both have separate channels) and one of them revealed his one-month income from YouTube (with about 70-80 thousands subscribers) ... the money for the month they received from WU was around 122000 pkr. (though they said the income fluctuates, but average is around 70-80 thousands a month)