Graph

The bar chart shows the expenditure on fast foods in Britain by different income groups, while the graph illustrates the trend in consumption of fast foods.
It can be seen from the bar chart that high income group spent double amount of money on fast foods in comparison with low income group. Customers of high income group spent 42 pence, which was more than a half of their expenditure on fast foods, on hamburgers. Whereas, average and low income groups spent only 33 pence and 14 pence on this kind of fast foods respectively. The amount of money spent on pizza were often the lowest as it is shown in the sections of average income group (12%) and low income group (8%), but high income group spent least on fish and chips (18%).
The graph illustrates the trends in consumption of fast foods from 1970 to 1990. Customers tended to eat more and more hamburgers and pizza while they ate less fish and chips during this 20-year period. In 1970, British people ate over 300 grammes of fish and chips, 80 grammes of hamburgers and 3 grammes of pizza. However, the situation change when the consumption of hamburgers and pizza eaten went up steadily between 1970 and 1980 then it increased sharply between 1980 and 1990. specifically, the consumption of fish and chips was beaten by hamburgers in 1982, and by pizza ten years later. Although the amount of fish and chips eaten went up slightly in 1986, it is expected that fish and chips would never be the king of fast foods as it was in 1970.
It can be inferred from the two figures that high income group helped to increase the consumption of hamburgers and pizza in Britain from 1970 to 1990, while fish and chips was preferred by people of lower income groups.