Here, base year is 2010 and current year is 2015.

∴ p_{0} = Price in 2010;

q_{0} = Quantity in 2010

and p_{1} = Price in 2015

**The table for calculation is prepared as follows:**

Index number by total expenditure method

\(=\frac{\sum {p_1\,q_0}}{\sum {p_0\,q_0}}\times 100\)

\(=\frac{1016}{680}\times 100\)

= 149.41