銆€銆€涓�銆佸埄鐜囩殑瑷堢畻

銆€銆€(涓€)鍏�(n猫i)鎻掓硶锛氶櫎姘哥簩(x霉)骞撮噾澶栫殑鍏朵粬鎯呮硜涓�锛岃▓绠楀埄鐜囨檪锛岄鍏堣瑷堢畻鍑烘湁闂�(gu膩n)鐨勬檪闁撳児鍊肩郴鏁�(sh霉)锛屾瘮濡傚京鍒╃祩鍊�(鐝�(xi脿n)鍊�)绯绘暩(sh霉)锛屾垨鑰呭勾閲戠祩鍊�(鐝�(xi脿n)鍊�)绯绘暩(sh霉)锛岀劧鍚庢煡琛ㄣ€傚鏋滆〃涓湁閫欏€嬬郴鏁�(sh霉)锛屽墖灏嶆噳鐨勫埄鐜囧嵆鐐鸿姹傜殑鍒╃巼銆傚鏋滄矑鏈�锛屽墖鏌ュ嚭鏈€鎺ヨ繎鐨勪竴澶т竴灏忓叐鍊嬬郴鏁�(sh霉)锛岄噰鐢ㄥ収(n猫i)鎻掓硶姹傚嚭銆�

銆€銆€绲�(ji茅)璜栵細 (i-i1)/(i2-i1) =(B-B1)/(B2-B1)

銆€銆€銆愪緥25-鏁欐潗渚�11-19銆戦劖鍏堢敓涓嬪礂鐛插緱50 000鍏冪従(xi脿n)閲戣鍔╋紝浠栨焙瀹氳秮鐝�(xi脿n)鍦ㄩ倓鏈夊嫗鍕曡兘鍔�锛屽厛鎵惧伐浣滅硦鍙ｏ紝灏囨闋呭瓨璧蜂締銆傞劖鍏堢敓闋愯▓锛屽鏋�20骞村悗閫欑瓎娆鹃爡閫ｆ湰甯跺埄閬斿埌250 000鍏�锛岄偅灏卞彲浠ヨВ姹鸿嚜宸辩殑椁�(y菐ng)鑰佸晱椤�銆傚晱閵€琛屽瓨娆剧殑骞村埄鐜囩偤澶氬皯锛岄劖鍏堢敓鐨勯爯瑷堟墠鑳借畩鎴愮従(xi脿n)瀵�?

銆€銆€250000=50000脳(F/P,i锛�20)锛�(F/P,i锛�20)=5锛屽嵆(1+i)20=5

銆€銆€閬嬬敤鍏�(n猫i)鎻掓硶鍙婇€愭娓│娉曡▓绠�

銆€銆€鐣秈=8%鏅�锛�(F/P,8%锛�20)=4.661

銆€銆€鐣秈=9%鏅傦紝(F/P,9%锛�20)=5.604

銆€銆€鍥犳锛宨浠嬩簬8%鍜�9%涔嬮枔銆�

銆€銆€8% 4.661

銆€銆€i 5

銆€銆€9% 5.604

銆€銆€(i-8%)/(9%-8%)=(5-4.661)/(5.604-4.661)

銆€銆€i=8.359%

銆€銆€銆愪緥26-鏁欐潗渚�11-22銆戞煇鍏徃绗竴骞村勾鍒濆€熸20000鍏冿紝姣忓勾骞存湯閭勬湰浠樻伅椤嶅潎鐐�4000鍏�锛岄€ｇ簩(x霉)9骞翠粯娓�銆傚晱鍊熸鍒╃巼鐐哄灏�?

銆€銆€宸茬煡P=20000锛孉=4000锛宯=9锛屽墖(P/A,i,9)=P/A=20000/4000=5

銆€銆€閬嬬敤鍏�(n猫i)鎻掓硶鍙婇€愭娓│娉曡▓绠�

銆€銆€宸茬煡(P/A,12%,9)=5.3282锛�(P/A,14%,9)=4.9464

銆€銆€12% 5.3282

銆€銆€i 5

銆€銆€14% 4.9464

銆€銆€(i-12%)/(14%-12%)=(5-5.3282)/(4.9464-5.3282)

銆€銆€i=13.72%

銆€銆€姘哥簩(x霉)骞撮噾鐨勬姌鐝�(xi脿n)鐜囷細i=A/P

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