Answer:
81.39% increase.
Explanation:
Given: There is change in number from 43 to 78.
First lets find the amount of change or difference in number.
Difference in number=

∴ Difference in number show that there is an increase of 35 number.
Now, finding the percent change in the number.
Percent=

⇒ Percent change in number=

∴ 81.39% increase in the number.