The two plots below show data for four companies code- named A, B, C, and D over three years - 2019, 2020, and 2021. The first plot shows the revenues and costs incurred by the companies during these years. For example, in 2021, company C earned Rs.100 crores in revenue and spent Rs.30 crores. The profit of a company is defined as its revenue minus its costs.

The second plot shows the number of employees employed by the company (employee strength) at the start of each of these three years, as well as the number of new employees hired each year (new hires). For example, Company B had 250 employees at the start of 2021, and 30 new employees joined the company during the year.

Revenue, costs and employees

Year	Company	Revenue	Cost	Employees	Hires
2019	A	90	85	150	20
2019	B	100	75	210	35
2019	C	25	20	325	45
2019	D	50	40	400	30
2020	A	90	65	140	35
2020	B	90	40	240	45
2020	C	70	60	325	40
2020	D	20	50	410	35
2021	A	60	30	150	25
2021	B	30	30	250	30
2021	C	100	30	325	35
2021	D	70	70	400	40

Values were transcribed from the rendered source pages.