A (budget deficit) may reach some percent of gross domestic product.
An estimate can be constituted-of-or-filled-with gross domestic product.
Some percent can be constituted-of-or-filled-with some gross domestic product.
A deficit can be equivalent to some percent of gross domestic product.
A (budget deficit) can be some percent of gross domestic product.
A deficit may exceed some percent of gross domestic product.
A (budget deficit) can be equal to some percent of gross domestic product.