What Motivates Students to Choose a College What Motivates Students to Choose a College

There hadwas a sharp decline in costs, at only at 5% in 2002 compared with nearly 30% in 1980. There was a sharp decline in costs, at only 5% in 2002 compared with nearly 30% in 1980.

There hadwas a sharp decline in cost considerations because it was, only at 5% in 2002 compared with nearly 30% in 1980. There was a sharp decline in cost considerations because it was only at 5% in 2002 compared with nearly 30% in 1980.

The amount forpercentage shared by the remaining three factors presented a different pattern. The percentage shared by the remaining three factors presented a different pattern.

Could also say "The percentage of...", "The change in percentage of..."

The amountchanges for the remaining three factors presented a different pattern. The changes for the remaining three factors presented a different pattern.

The percentage of amenities, social activities and sports facilities noticeably grew up to 18% in 2002, over three times more than just 5%it was in 1980. The percentage of amenities, social activities and sports facilities noticeably grew up to 18% in 2002, over three times more than it was in 1980.

This isn't grammatically incorrect, but adding "just 5%" may be redundant as you already said that it grew over three times

The percentage of amenities, social activities and sports facilities noticeably grew to 18% in 2002, which is over three times more than just 5% in 1980. The percentage of amenities, social activities and sports facilities noticeably grew to 18% in 2002 which is over three times more than just 5% in 1980.

The proportion of students who paid attention to the reputation of the institution was relatively low, at 5% in 1980, but it saw25% in 2002 which is a significant five-fold rise to 25% in 2002in interest. The proportion of students who paid attention to the reputation of the institution was relatively low, at 5% in 1980, but 25% in 2002 which is a significant five-fold rise in interest.

ItThere was virtually remained unno changed in admission criteria ibetween these two years. There was virtually no change in admission criteria between these two years.

"It" might be mistaken as refering to the statistic described in the previous sentence.

It virtually remained unchanged in admission criteriaConsideration of admission criteria remained virtually unchanged in these two years. Consideration of admission criteria remained virtually unchanged in these two years.

Overall, suitable courses and degrees were by far the most important factors forthat students considered. Overall, suitable courses and degrees were by far the most important factors that students considered.

Overall, suitable courses and degrees were by far the most important factors forwhich students considered. Overall, suitable courses and degrees were by far the most important factors which students considered.

or Overall, suitable courses and degrees were by far the most important factors that students considered.

The percentage of amenities, social activities and sports facilities and reputation of the institution increased markedsignificantly, while the figure for the remaining three factors showed opposing trends. The percentage of amenities, social activities and sports facilities and reputation of the institution increased significantly, while the figure for the remaining three factors showed opposing trends.

"Significantly" is a more appropiate word to use in this context. Typically when describing change in statistics we talk about a "significant increase/decrease", "significant correlation", etc. "Markedly" is rarely used in the same context.