70p is the daily equivalent cost of purchasing a brand new computer which lasts three years. Here's the maths...
£450 divided by 220 working days (44 weeks at 5 days per week) times 3 years.
£450 might seem a lot of money to your budget right now. Losing half an hour of staff productivity each day (a conservative estimate) because your computers are slow and pretty much useless is costing you a similar amount every four to six weeks.
Guess it's up to you how you spend your money...