Why did an imported proportion become 25 instead of 0.25?

import {DatabaseSync} from 'node:sqlite';
import {TextDecoder} from 'node:util';
import {inflateSync} from 'node:zlib';
import {posix} from 'node:path';
import {createHash} from 'node:crypto';
const rows=(db,sql)=>db.prepare(sql).all().map(r=>({...r}));
const failed=(action)=>{try{action();return null;}catch(e){return {code:e.errcode??e.code??e.name};}};

import assert from 'node:assert/strict';
const run=function run(i,corrected=true){
    if(!corrected)return {accepted:true,proportion:parseFloat(i.display)};
    if(i.kind==='number'&&i.style==='percent')return {accepted:true,proportion:i.value};
    if(i.kind==='text'&&/^\d+(?:\.\d+)?%$/.test(i.value))return {accepted:true,proportion:Number(i.value.slice(0,-1))/100};
    return {accepted:false,error:'percentage-representation-not-declared'};
  };
const cases=[{"label":"misleading base","input":{"kind":"number","value":0.25,"style":"percent","display":"25%"},"expected":{"accepted":true,"proportion":25},"corrected":false},{"label":"corrected base","input":{"kind":"number","value":0.25,"style":"percent","display":"25%"},"expected":{"accepted":true,"proportion":0.25},"corrected":true},{"label":"declared percentage text","input":{"kind":"text","value":"25%","style":null,"display":"25%"},"expected":{"accepted":true,"proportion":0.25},"corrected":true},{"label":"number without declared percentage style","input":{"kind":"number","value":25,"style":null,"display":"25"},"expected":{"accepted":false,"error":"percentage-representation-not-declared"},"corrected":true}];
for(const test of cases){
  const actual=run(test.input,test.corrected);
  assert.deepEqual(actual,test.expected,test.label);
  console.log(test.label,actual);
}