1. Return on investment is the percentage of the expenditure recovered each year. 2. The numerator for the formula for return on investment is the annual savings. 3. The denominator for the formula for return on investment is the 4. Because the return on investment formula is a percentage, the resulting dividend is multiplied by 5. The return on investment for the unit sold by vendor A would be as follows (fill in the blank in the numerator): $8,000100 1. Return on investment is the percentage of the expenditure recovered each year. 2. The numerator for the formula for return on investment is the annual savings. 3. The denominator for the formula for return on investment is the 4. Because the return on investment formula is a percentage, the resulting dividend is multiplied by 5. The return on investment for the unit sold by vendor A would be as follows (fill in the blank in the numerator): $8,000100