The given chart represents the percentage of kinds of magazines that the corporation sold in 3 years 1975, 1995 and 2015.
Generally, sports journals were sold the most in 4 types, while the opposite was true for food and fashion journals. In addition, the proportion of sports magazines witnessed an upward trend whilst a downward trend was seen in fashion and health magazine consumption.
Regarding sports periodicals, the proportion of this was about 32% in 1975, after 40 years, the figure increased significantly to 42%. Turning to food magazines, 15% food magazines were bought in 1975. After peaking at about 22,5% in 1995, that went down by around 12,5% in 2015.
Concerning magazine genres with downward trend, the percentage of fashion was about 23% in 1975 then after 40 years, the selling of that was reduced dramatically to 5%. Over the period, that firm started trading 27% health magazines, it dropped 7% in 2015.Additionally, there were other types of periodicals marketed with the proportion of 26% in 1975 and remained unchanged 40 years later.