IELTS Writing task 1_Line graph

I'm preparing for IELTS, so I really need someone to check my writing. Thank you, guys ^^

The line graph describes changes in the income of different café in New York in the previous year. It can be seen from the graph that while three of four cafes consist WiFi Café, Internet Express and Café fluctuated with an upward trend, The Tea Room fluctuated with a downward trend.

WiFi Café received the most income over twelve months. Starting at only roughly 50 000s dollars in January, the amount of the income of WI–fi Café increased in the next four months before rising and falling evenly from May to September with a peak of about 100 000s dollars in July. Then there was a sharp increase to the highest point of just under 200 000s dollars in the last month. Besides, the income of Internet Express stood at well under 100 000s dollars in the first month, declining lightly to around 80 000s dollars in May and then rising again with ending the period at nearly 140 000s dollars.

Whereas Café Cool underwent a wild fluctuation over the period and reach the same amount of the income as Internet Express in December. In comparison, although The Tea Room has the largest income in January, its income amount dropped dramatically to less than 60 000s dollars.