Enrique has just completed a detailed analysis of the IRR of a waste-water treatment plant for Monterrey Meat Products. The 8.7% after-tax IRR he calculated compared favourably with a 5.2% after-tax MARR. For reporting to upper management, he wants to present this information as a before-tax IRR. If Monterrey Meat Products pays 53% corporate taxes, what figures will Enrique report to upper management?