Open question: I need advice, which I do?

ok so i work RK A hotel and incoming goods DO A thing called petty cash. its when to employee pays for something and the company RH of emberses them. wave i work the front desk and i had A maintenance person donate 25,77. he told ME he spent 75,03 and 1,00 in gas. so i gave him 76,03. 2 20s 7 5s 1 1doller and 3 pennies. he told the managers i only gave him the 25,00 and now the managers is taking the 51,00 from my paycheck. i know i larva A mistake but should i have tons pay for it?