vcf2maff resuts on varsccan

[bioinfo-dirty-jobs]

I follow the readme n varscan but I have some problems on the VF calclucation on tvaf.
Inside the value the report the percent...how can caluclate the VAF correcly on this maf file?

t_depth | t_ref_count | t_alt_count | n_depth | n_ref_count | n_alt_count
-- | -- | -- | -- | -- | --
22 | 2 | 20% | 15 | 0 | 0%
128 | 29 | 18.47% | 118 | 12 | 9.23%
17 | 2 | 10.53% | 12 | 0 | 0%
24.22 | 2 | 22.22% | 12 | 0 | 0%
24.22 | 2 | 22.22% | 12 | 0 | 0%
33 | 4 | 10.81% | 22 | 0 | 0%