B. Charles has a basic working week of 40 hours, paid at the rate of £8 per hour. For hours worked in excess of this he is paid 11 /2 times basic rate. In the week to 12 March 2012 he worked 45 hours. The first £70 per week is free of income tax, on the next £50 he pays tax at the 20 per cent rate and above that he pays at the 25 per cent rate. National Insurance amounted to £34. Calculate his net wages.