The World Bank's international poverty line definition is based on purchasing power parity basis, at $1.25 per day. This definition is motivated by the fact that the price of the same goods and services can differ significantly when converted into local currencies around the world. A realistic definition and comparison of poverty must consider these differences in costs of living, or must be on purchasing power parity (PPP) basis. On this basis, currency fluctuations and nominal numbers become less important, the definition is based on the local costs of a basket of essential goods and services that people can purchase. By World Bank's 2014 PPP definition, India's poverty rate is significantly lower than previously believed.