Determination of calcium in milk by EDTA titration? . Titration question! HELP please!?

Determination of calcium in milk by EDTA titration?. Titration question! HELP please!?determine the amount of calcium in milk powder3.011 g of skim milk powder was added to a 250 ml flask..then it was diluted to volume. the titration was done with EDTA that has a standard concentration of 0.0100 M. I used 25 ml of the milk solution for each titrationthe data I have isthe volume of EDTA after the titrationTrial 1- 9.71 mLTrial2- 9.75mLTrial 3- 9.62 mLCan you please show your work and explain how to do determine the amount of calcium in milk?thank you