Answer:
% increase = 25%
Explanation:
Number of games won this year; N1 = 20 games
Number of games won last year; N2 = 16 games
To calculate the percentage increase, we will use the formula;
% increase = (increase in number of games won/original number of games won) x 100%
Now, increase in number of games won = N1 - N2 = 20 - 16 = 4
Since original number of games won is 16,thus;
% increase = 4/16 x 100% = 25%