4) Company C is a machinery manufacturing enterprise, the applicable corporate income tax rate is 25%, and the minimum rate of return required by the company is 12%. In order to save costs and improve operating efficiency
 
  Other information is as follows: Information: The new and old equipment data are shown in Table 1-16.

Data 2: The relevant currency time value coefficients are shown in Table 1-17.

2 Calculate the following indicators related to the use of old equipment:

It is known that the net present value (NPV) of the used equipment is 9,432,900 yuan. Based on the above calculation results, make a decision on whether to update the fixed assets and explain the reasons.

(n) 5 6. (P/F, 12%, n) 0.567 4 0.506 6 ( P/A, 12%, n) 3.604 8 4.111 4