You wish to invest £ into CASTOR INTERNATIONAL (in 1 or up to 7 instalments). If the VINCI share price is £ 708090100... As deductions are made from pay before tax and NI, Basic Rate taxpayer would save 32% and Higher Rate taxpayer would save 42% of the amount invested in the SIP CASTOR INTERNATIONAL. Your investment is likely to reduce your net pay by about: Help - The minimum amount to be invested is £10 per deduction.- The maximum amount to be invested is £1800 per year.- Your employer will match the number of shares that you buy, up to a maximum value of £1,500.To keep things simple, the share price and exchange rates are the same for the whole period. In reality the share price and exchange rate would be constantly changing.