A rate of return analysis was initiated for the infinite-life altematives shown below Alternative Initial Investment, $ . % on Incremental Cash Flows when initial Compared with Alternative 20,000 -30,000 50,000 -80,00O 20 35 25 20 11.7 Fill in the six blanks in the incremental rate of return ( columns. (You must provide an answer before moving to the next part.) Alternative Initial Investment, $ ,-% on Incremental Cash Flows when initial Compared with Alternative -20,000 30,000 -50,000 -80,000 20 35 25 20