JSFiddle - React, Tailwind, and code Playground

JavaScript

function roundHundred(value){
   return Math.round(value/100)*100
}

console.log(roundHundred(10651.89));
console.log(roundHundred(10649.89));
console.log(roundHundred(60355.03));
console.log(roundHundred(951479.29));
console.log(roundHundred(1331360.95))