calculate $10,000 plus 39000%
39 000% of 10 000 is
\(390 \cdot 10000 = 3900000\)
so $10 000 plus 39000% of 10 000 is
\(10 000 + 3900000 = 3910000\)
Assuming you typo'd and meant 39%:
\(10 000 + (10000 \cdot 0.39) = 13900\)
-mk