Output of Code is 114 I can't figure out why

It is the order of math operations. C++ follows the standard math operations that you would see in math.

total = two + one / total;

should be..

total = (two + one) / total;

First, let's consider the calculation of the program:

1. When i is 0, the program runs the else section, one * two equals to 112, so total is increased by 112, and now it's 0 + 112 = 112.
2. When i is 1, the program runs the if section, two + one / total is 2 + 56 / 112. First, notice that operator/ is prior than operator+, so it will be first calculated. Second, if the two numbers of the / calculation is both integers, the fractional part would be abandoned, so the result of 56 / 112 is 0. Then, the result of 2 + 56 / 112 is 2 + 0, and that's 2, so the value of total is now 2.
3. When i is 2, the program runs the else section, one * two equals to 112, so total is increased by 112, because it was 2 before the addition, it should be 2 + 112 = 114 now.

In an conclusion, the key point is that because it was 2 before the addition, it should be 2 + 112 = 114 now, and don't forget that if you use operator+=, the program increases the variable by the value after the operater, but not just setting the variable to the value after the operator.