This a script of a user that has 2000 as his account balance with a detailed breakdown of the user's expenditures and his balance at the end of his expenses. The above is the user's current balance ...

# x = x + 3 is a code to increment x by 3 x += 3 # += is an augmented assignment operator to increment x by 3 # we can also use -=, *=, /=, //=, **=, %=, etc.