If price-quantity are related for base year (0) and current year (1) are
$$\sum_{}:p_{0}q_{0} = 260,\sum_{}:p_{1} q_{0} = 395, \sum_{}:p_{0}q_{1} = 264, \sum_{}:p_{1}q_{1} = 422$$, then Marshall Edgeworth price index equals to
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