Cost of a product is Rs. 600000.If it depreciates by 15%,13.5%,12% in 1^st,2^nd,3^rd years&so on.?

Question

Wht's the value after 10 yrs.,percentages applying to original cost?

Answer 1

It looks like the series is
i*0.9 to calculate the next year's interest rate
using fv=pv*(1-i)
and calculating the correct series:

fv(N)=pv*(1-i)*(1-i*.9)*
(1-i*.9^2)...(1-i*.9^(N-1))

fv(10)=215,500

j

Answer 2

600000x85%x86.5%x88%x
89.5%x91%x92.5%x94%x
95.5%x97%x98.5%=
250850.12