The letters SCH entered to the left of Line 7 of the tax return and the number shown is the amount of taxable scholarship that is entered on Line 7. SCH stands for Scholarship and the amount is included in your taxable income and therefore included as part of your AGI.
See this TurboTax support FAQ for taxable scholarships - https://ttlc.intuit.com/questions/2172062-why-is-my-scholarship-taxable
IRS Form 1040 instructions for Line 7 on page 22 - https://www.irs.gov/pub/irs-pdf/i1040gi.pdf#page=22
Scholarship and fellowship grants
not reported on Form W-2. Also, enter
“SCH” and the amount on the dotted
line next to line 7. However, if you were
a degree candidate, include on line 7 only
the amounts you used for expenses
other than tuition and course-related expenses.
For example, amounts used for
room, board, and travel must be reported
on line 7.
