Answer:
20% increase
Step-by-step explanation:
In the first game,
The Pittsburgh Steelers touchdowns = 5
And in the second game,
The Pittsburgh Steelers touchdowns = 6
So touchdown changes = (5-6) = 1
In 5 touchdown, there is an increase of 1 touchdown
In 1 touchdown, there is an increase of (1/5) touchdown
In 100 touchdown, there is an increase of (1/5)*100 touchdown
= 20%
Therefore, there is a change of 20%.