i dont think i did this right what do u guys think

Answer:
see below
Step-by-step explanation:
To find the percent increase, take the new amount and subtract the original amount
25-20 = 5
Divide by the original amount
5/20 = .25
The increase is 25%
100% + 25% = 125%
The new amount is 125% of the old amount
Answer:
yes........ correct
Step-by-step explanation:
Although, the method that i tried to justfy is not the same as yours, I got the same final answer. so, what you wrote is right.