need to figure out way to take the end of a log file value and take that value and add it to the end of the next line. So it would look something like this.
"x","x","x","100"
"x","x","x","200"
"x","x","x","400"
should turn into
"x","x","x","100","0"
"x","x","x","200","100"
"x","x","x","400","200"
have any suggestions
"x","x","x","100"
"x","x","x","200"
"x","x","x","400"
should turn into
"x","x","x","100","0"
"x","x","x","200","100"
"x","x","x","400","200"
have any suggestions