Let's say in total there are 100 games.
So far they played 75 games.
42% of 75 is 31.5 games so the team has won 31.5 games so far and lost 43.5 (lets pretend 0.5 games is ok).
They have 25 games left, so 31.5 + x = 43.5 + (25-x)
Solving the equation, we get 2x-25=12 and x = 37/2 = 18.5.
The percentage would then be 18.5/25 = 185/250 = 37/50 = 74/100 = 74%.
Hope this helped!
