Write a C++ program to calculate the cost per item and the total cost for a bulk order

Quantities of 1 to 99 will be charged $2.59 per item

Quantities of 100 to 499 will be charged $2.29 per item

Quantities of 500 to 1999 will be charged $2.19 per item

Quantities of 2000 or more will be charged $1.99 per item

Sample Run #1 (bold, underlined text is what the user types):

Quantity? 10 Price per unit: $2.59 Total prices: $25.9

Could you wright me a code with explanation of how you arrive to that solution please step by step.

The math section is always the hardest part for me.

THANK YOU