5 percent
5 to 6 is a 20% increase.
25% increase.
60% increase.
20% increase.
It is a 5% increase
5% increase.
150% increase.
900% increase.
10% = 202.09, 5% = 101.045. Just add these...
Multiply 80 by 1.05 to increase by 5%.
The final cost will be $59.85