what is 51.8 billion over 133.9 billion as a percent

\(\frac{51800000000}{133900000000}=0.387\)

\(0.387=0.00387\%\)

51.8 / 133.9 =0.386855 x 100 =38.6855% 

P.S. I dropped the word "billion" because it make no difference.