You have been asked to evaluate a prokject with an infinite life. sales and costs are projected to be £1000 and £500 per year, respectively. (assume sales and costs occur at the enf of the year. there is no depreciation, and the tax rate is 21%. the real required rate of return is 10%. if the project costs £3000, what is the npv? a) $500.00 b) $1629.62 c) $365.38 d) $472.22