Which formula represents the calculation of the Passche price index, where 'o' denotes the base year and 'n' the current year?

Explanation

The Passche price index is calculated using the formula P = ΣPnqn / Σpoqn, where Pn and po are prices in the current and base years respectively, and qn is the quantity in the current year. Other formulas correspond to different price index methods.