10% is 8, so multiply this by 7 to get 70%.
That would 56.
To get the 2% think of what 1% is then double it.
1% would be 0.8, so 2% would be 1.6
Then, to get the 0.5% just cut what 1% of it is.
Since 1% would be 0.8, you cut it in half to get 0.4.
Combine the 56, 1.6, and 0.4.
1.6+0.4=2.
So the problem would read 56+2=58.
58 is 72.5% of 80 games.
