Installation of video presentation in computer science

The simple installation of this FullHD roll is to inform the initial roll, the main roll-presentation (recorded by the trainer) and the final roll. The effects of transitions are also added, the "image in the picture" effect for the linking of the rolls, two running lines, logos and watermark are placed.
The sound balance, the tone of the voice is reduced, the background noise is reduced, the firm sound substrate is added.

The installation of rolls with this client is one-type and massive, and the main cost is exhibited for the first roll, all subsequently at a lower price.
The price of the first roll I don't remember, but something in the area of 300 rubles.
The cost of the following 40 rubles, after each hundred processed rolls, the cost increases by 10 rubles.