Resize pictures in Photoshop

I have a few hundred pictures in JPEG format. Theses JPEG pictures need to be reduced in size or cropped and saved to 2 dimensions with different names. For example the attached picture should be: 1 – Cropped to center the piece of jewelry. 2 – Resized to 300 pixels wide + Sharpened 3 - Saved to AAAAAA_L,jpg (the name for each picture will be given to you on an excel spreadsheet) 4 – this last picture should be resized to fit in a small box 100 x 100 pixels. The box need to be made ad the picture inserted. If necessary the background will be filled if there is a gap in the height or width 5 – this 100 x 100 picture need to be saved to AAAAAA_S,jpg There is no other processing than the one described above. I need to know the cost by set of 50 pictures, with as of today a total of 300. Attached are 2 pictures samples.