How can expenses be explained by cuts? Increases can, but unless the government is actually taking money, you can't explain tuition costs in terms of decrease expenses.
That is explaining changes in expenses, not the expenses themselves. In this simplified case, salaries are 100% of the expenses, while government funding covers X% and tuition has to cover 100-X%. If X goes down, 100-X% goes up, but the minimal of X is 0, and as such at minimum government funding, 100% of tuition would be due to salaries and 0% due to government.
