Help required with multiple formula

Hello, would anyone be able to kindly help with a multiple formula?

I would like to calculate a value with a number of results then to be added together for one total.

For example: cell value = 123 and one total calculation to be worked out with the following data:

01-10 x 2.00 = 20.00
11-20 x 1.95 = 19.50
21-30 x 1.90 = 19.00
31-40 x 1.85 = 18.50
41-50 x 1.80 = 18.00
51-60 x 1.75 = 17.50
61-70 x 1.70 = 17.00
71-100 x 1.65 = 49.50
100+ x 1.50 = 34.50

Result would be 213.50

Can this be done? I would be grateful for any tips, thanks :-)