Software Solution( SOS) helps subscribers solve software problems. All transactions are made over the phone. For year 2018 , 10 engineers, most of whom are recent graduate, handed 100,000 calls. The average yearly salary for software engineers was $45,000. Starting in 2019, the firm retained and hired only software engineers with at least 2 years of experience. SOS raised the engineers' salary to $60,000 per year . In 2019, eight enginers handled 108,000 calls.

Require : Carry all computation to 4 digits after the decimal point.

1. Calculate the partial operational productivity ratio for both years.
2. calculate the partial financial productivity ratio for both years
3. did the firm make the right decision to hire only software engineers with at least 2 years' experience?
4. List other factors that should be considered in making the decision.