What is the Delta IRR of the difference between the cashflow of the machine with the higher initial value and the lower initial value with the following data? Benefits are constant over all years.

Machine A Machine B Initial cost $125,000 $175,000 Life in years alvage after life |15% Benefits per year $72,000 81,000 Costs per year$15,800 $24,200 15% Inflation Costs keep increasing at 2.5% every year even when a new machine is bought. 2.50% 17.53% 21.86% O 33.8% 41.75%