The Chart on Sides is more complicated.
For totals it's pretty simple. In general, take the 2h Total Pregame (I call it PreFlop), and then adjust 15% for 1st half scoring
Example. GAme total 150. 1h 71. 2h 79.
1h Score is 91 Points. Make 2h total 79 +.15*20= 82. Bump it up 3 points for the happy action funtime 1h........
Note, you can see how you can just manually do this also......a bookmaker can see "NO D!....move that 79 UP!"