Table Charts - General Questions

Number of laptops (in thousands) sold by five brands over the years

Year	Brand A	Brand B	Brand C	Brand D
2018	140	130	95	125
2019	180	65	85	145
2020	35	150	160	65
2021	35	180	165	100
2022	35	70	95	145

What is the total sales of Brand A over all the years shown (in thousand laptops)?

What is the percentage increase in the sales of Brand D from 2021 to 2022?

What is the difference between the total sales in 2019 and in 2022 (in thousand laptops)?

In 2021, the sales of Brand A is approximately what percent of the total sales of that year?

What is the ratio of the sales of Brand A to that of Brand B in 2020?