You have that:
 - 1,395,000 is the 100%.
 - Air force=350,000
 1,395,000----100%.
     350,000-----x
 x=350,000x100/1,395,000
 
 x=25.1%
 The Air force represents 25.1%
 
 - Army=502,000
 1,395,000----100%.
     502,000-----x
 x=502,000x100/1,395,000
 x=36%
 The Army represents 36%
 - Navy=348,000
 1,3395,000----100%.
     348,000-----x
 x=348,000x100/1,395,000
 x=24.9%
 The Navy represents 24.9%
 - Marines=195,000
 1,3395,000----100%.
     195,000-----x
 x=195,000x100/1,395,000
 x=14%
 The Marines represents 14%