Hi Iggy
If you have held the asset for longer than 12 months then as you said only half the gain is subject to capital gains tax.
Capital Gain = $410,000 - $240,000 - $12,000 - $20,000
Capital Gain = $138,000
Tax on Capital Gain/2 * 48.5% = $33,465
Net Gain = $104,535
Real Return on...