Answer:
Percentage increase = 35%
Explanation:
We can find the percentage increase using the following formula:
% increase = (|(final value - starting value)| / starting value) * 100
Step 1: Subtract starting value from final value:
The starting value is 120, while the final value is 162. Now we subtract 120 from 162: 162 - 120 = 42.
Step 2: Divide 42 by starting value:
42 / 120 = 7/20 = 0.35
Step 3: Multiply 0.35 by 100 to find percentage increase:
% increase = 0.35 * 100 = 35%
Optional Step 4: Check validity of answer.
35% of 120 is 42. 120 + 42 = 162. Thus, our answer is correct.