Use the following information to answer the question below

                                01/01/2016   31/12/2016
Trade debtors-------80,000           100,000
Trade creditors-----30,000            40,000
Stock-----------------70,000             90,000

Cheques received from trade debtors in 2016: 350,000
Payment made to trade creditors in 2016: 220,000

Credit purchase for 2016 is?