設有一投資項目，最初投資 <font face="Times New Roman, Times, serif">$100000</font>，之後五年每年預計回報為 <font face="Times New Roman, Times, serif">$10000</font>、<font face="Times New Roman, Times, serif">$20000</font>、<font face="Times New Roman, Times, serif">$30000</font>、<font face="Times New Roman, Times, serif">$40000</font>、<font face="Times New Roman, Times, serif">$50000</font>。求內部回報率 <font face="Times New Roman, Times, serif">IRR</font>。<p>在 <font face="Times New Roman, Times, serif">EL-735</font> 上</p><p><strong><font color="#990000">先按 <font face="Times New Roman, Times, serif">RCL CFi 2ndF CA =</font> 清除財務數據</font></strong></p><p>按<font face="Times New Roman, Times, serif"> 100000 +/-</font>，再按 <font face="Times New Roman, Times, serif">CFi </font>( 最初投資，<font color="#0000ff"><strong>由於是付出，所以以負數輸入</strong></font> )<br/>按 <font face="Times New Roman, Times, serif">10000</font>，按 <font face="Times New Roman, Times, serif">CFi</font> ( 第一年回報，<font color="#0000ff"><strong>由於是收入，所以以正數輸入</strong></font> )<br/>按 <font face="Times New Roman, Times, serif">20000</font>，按 <font face="Times New Roman, Times, serif">CFi</font> ( 第二年回報 )<br/>按 <font face="Times New Roman, Times, serif">30000</font>，按 <font face="Times New Roman, Times, serif">CFi</font> ( 第三年回報 )<br/>按 <font face="Times New Roman, Times, serif">40000</font>，按 <font face="Times New Roman, Times, serif">CFi</font> ( 第四年回報 )<br/>按 <font face="Times New Roman, Times, serif">50000</font>，按 <font face="Times New Roman, Times, serif">CFi</font> ( 第五年回報 )</p><p>按 <font face="Times New Roman, Times, serif">IRR</font>，顯示 &nbsp;<font face="Times New Roman, Times, serif">12.01</font></p>