Question 43236
(I wasn't sure if you meant two checks for $68.74.  So I just used one check for $68.74, one check for $29.95 and a debit for $57.65)  
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This is a subtraction problem.  You want to find the difference from the beginning balance of $526 and the ending balance.
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First subtract each deduction from the total:
$625.00 (Beginning Balance)
-068.74
-029.95
-057.65
_______
468.66 (Ending Balance)


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Next, find the difference between the two balances:
$625.00 (Beginning balance)
-468.66 (Ending balance)
________
$156.34 (Difference or change between the two balances)