Calculate Laspeyre's and Paasche's price index number on the basis of the following data:
CommodityABCDEBase Year Price (p0)1025301520Curreny Year Price (p1)1540453025Base Year Quantity (q0)61015208Current Year Quantity (q1)82012156
What are the disadvantages in using Paasche's formula for the construction of a price index number?