Answer:
31.42%
Explanation:
The computation of the estimate of the percentage reduction in present overhead costs per month is shown below:-
n = log s ÷ log2
= log 0.90 ÷ log 2
= -0.152
Now we will use the learning curve equation which is here below:
Z30 = 1.15X × 30^(-0.152)
= 0.685765148
So, the cost is reduced by
= 1 - 0.685765148
= 0.314234852
or
= 31.42%