The difference will be 10.00-9.74=0.26 . That is 26 cents.
There are coins: 1,5,10 and 25 cents.
We list all the possible options.
1+25=26 1+10+10+5=26 1+10+5+5+5=26 1+5+5+5+5+5=26 And variant with more penny: 26 times by penny 11 times by penny +10+5=2611 times by penny +5+5+5=2621 times by penny +5=2616 times by penny +10=2616 times by penny +5+5=266 times by penny +5+5+5+5=266 times by penny +5+5+10=266 times by penny +10+10=26