If there are 50 pieces, 1 piece is 4.90 AZN + 0.20 AZN (if printing on the second side)
If there are 100 pieces, 1 piece is 4.75 AZN + 0.18 AZN (if printing on the second side)
If there are 300 pieces, 1 piece is 4.70 AZN + 0.17 AZN (if printing on the second side)
If there are 500 pieces, 1 piece is 4.65 AZN + 0.16 AZN (if printing on the second side)
If there are 1000 pieces, 1 piece is 4.60 AZN + 0.15 AZN (if printing on the second side)
If there are 3000 pieces, 1 piece is 4.55 AZN + 0.14 AZN (if printing on the second side)

Note: the ink of the pens is blue.