Answer: 54%
Step-by-step explanation: To find the percent increase, we use the formula Amount of Change/Original Number.
The amount of change is the difference between the two numbers,
which here, is 77 - 50 and the original number is 50.
Notice that we always subtract the larger number minus the
smaller number when finding the amount of change.
that's so that our percent increase or
percent decrease will always be positive.
77 - 50 is 27 and we put this over 50.
So we have 27 divided by 50 which is 0.54.
Now, we want the percent increase.
We do this by moving the decimal point in 0.54
two places to the right to get 54%.