Fishers method for calculation of Price Index number is given by the formula
1
\(P_{01} = \frac{\sum{P_1}{Q_0}\times 100}{\sum {P_0}{Q_0}}\)
2
\(P_{01} =\frac{\sum{P_1}{Q_1}\times 100}{\sum {P_0}{Q_1}}\)
3
\(P_{01} = \sqrt{\frac{\sum{P_1}{Q_0}}{\sum{P_0}{Q_0}}\times \frac{\sum{P_1}{Q_1}}{\sum{P_0}{Q_1}}} \times 100\)
4
\(P_{01} = {\frac{\sum{P_1}{Q_0}}{\sum{P_0}{Q_0}}\times \frac{\sum{P_1}{Q_1}}{\sum{P_0}{Q_1}}}\)