The overall amount of money left is $201.
She added $400, $125, and $50 in to her bank account. If you add all those up, you get a total of $575 deposited. But she also withdrew $300 and $74. If you add those together, you get $374. Now just subtract $374 to $575 and you’ll get the sum of $201.
400+125+50=575
374+74=374
575-374=201