4 Software Solution (SOS) helps subscribers solve software problems. All transactions are made over the telephone. For the year 2018, 8 engineers, most of whom are recent graduates, handled 109,000 calls. The average yearly salary for software engineers was $48,000 Starting in 2019, the firm retained and hired only software engineers with at least 2 years of experience. SOS raised the engineers' salary to $63,000 per year. In 2019, five engineers handled 117,000 calls. Required: 1. Calculate the partial operational productivity ratio for both years. 2. Calculate the partial financial productivity ratio for both years. (Round your answers to 4 decimal places.) 2018 2019 1 Operational partial productivity 2 Financial partial productivity