Charitable Donations

We made a transfer of stock donation to a Charitable Foundation which will allow us to itemize deductions for 2020. (Approximately double the amount of the standard deduction for a married couple filing jointly) In addition there were other donations of items/goods and cash to other organizations. The amount of total donations is less than 50% of AGI. Why is only a portion of the total donation showing up on Line 14? Approx 85% of the total donation appears on Line 14. We did a similar transfer last year and 100% of the donation amount was applied. Appreciate any help/advice.