Depreciation claim

M/s. Raj limited purchased a machine on 01/04/2010 for rs. 500000. the company charged depreciation at 10% on reducing balance method up to 2014-15. from 2015-16 the company decided to change depreciation on straight line basis with estimated working life of 10 years and scrap value of rs. 75000. what is the amount of depreciation to be charged to profit and loss account for the year 2015-16??