(LPI) is a pricing index used to calculate increases in components of scheme pension payments in the UK. Currently, the statutory requirement for occupational pension schemes is that pensions in payment must be increased by the lower of RPI and 2.5% . Usually the lesser of the annual increase in the Retail Prices Index(or Consumer Prices Index) and 5%, although the percentage limit can vary. From April 2011, the index used for LPI will be switched from RPI to CPI(Consumer Price Index). The announcement makes it clear that: