BAMA Coporation had been a regular C corporation for eight years when it made an S corporation election three years ago. On the date of the S election BAMA owned land with an adjusted basis of $100,000 and fair market value of $170,000. In the current year, three years after the S election, BAMA sells the land for $210,000. How much of the $210,000 is subject to taxation under the built-in gains tax?