Origin of Woolf, Meaning of Woolf. Origin: The Woolfolk family originated in Wales. The family raised sheep in Wales. Instead of adopting the name 'Shepherd' as a typical Anglo-Saxon 'use name' for the family, they chose the surname 'Woolfolk'.
Sell through % = units sold / (units sold + on hand inventory). Sell-through is a percentage of units sold during a period (for example 1 month). It is calculated by dividing the number of units sold by the beginning on-hand inventory (for that same time period).
Click Through Rate is the percentage of clicks you have received from a number of impressions. e.g. If my AdWords ad had 500 impressions and 50 people clicked on my ad my CTR would be 10%.