Answer: Hello there!
The students wanted to raise $950, which will be called the %100.
They raised $1,045, the quotient betwen this and the initual amount they wanted is:
$1,045/$950 = 1.1
this means that $1,045 = 1.1*$950 = $950 + 0.1*$950
Then, if $950 is the 100%, $1,045 is the 1.1*100% = 110%
the difference is 110% - 100% = 10%
This means that the percent change in the amount the group raised is 10%.
