Undefined or NAN is result when pulling from mongoDB

I am trying to pull data from the database and display it in my app. Every variable is pulling except for firstPingPrice. I am getting either an undefined or NAN result.

const parsePing = (str) => {
const qoutePattern = /"(.*?)"/g;
const pingStr = str.match(qoutePattern)
const pings = [];
pingStr.forEach(i => {
    if (i != '"resu"' && i != null && !(String(i).includes('<'))) {
        i = i.split('"')[1].split('|')
        let ticker = i[0] + 'BTC'
        let ping = {
            symbol: i[0],
            market: 'BTC',
            ticker: ticker,
            ticker_slash: i[0] + '/' + 'BTC',
            exchange: 'binance',
            timestamp: i[7],
            ping_info: {
                pings: Number(i[1]).valueOf(),
                net_vol_btc: Number(i[2]).valueOf(),
                net_vol_per: i[3],
                net_vol_per_num: Number(String(i[3]).split('%')[0]).valueOf(),
                recent_total_vol_btc: Number(i[4]).valueOf(),
                recent_volume_percentage: i[5],
                recent_volume_percentage_num: Number(String(i[6]).split('%')[0]).valueOf(),
                recent_net_volume: Number(i[6]),
                first_ping_price: Number(i[8])
            },
        }
        pings.push(ping)
    }
})
return pings

} I believe this is the string. I added the firstPingPrice and assigned it i8.... I don't know if that's correct though. The data is going into the db correctly as a number and I am trying to display as a number in my app.

const parsePing = (str, exchange) => {
const qoutePattern = /"(.*?)"/g;
const pingStr = str.match(qoutePattern)
const pings = [];
pingStr.forEach((i) => {
    if (i != '"resu"' && i != null && !(String(i).includes('<'))) {
        i = i.split('"')[1].split('|')
        let ticker = i[0] + 'BTC'
        let ping = {
            symbol: i[0],
            market: 'BTC',
            ticker: ticker,
            exchange: exchange,
            date: new Date().toLocaleDateString('en-US'),
            info: {
                pingNum: Number(i[1]),
                netVolBTC: Number(i[2]),
                netVolPer: i[3],
                netVolPerNum: Number(String(i[3]).split('%')[0]),
                recentTotalVolBTC: Number(i[4]),
                recentVolPer: i[5],
                recentVolPerNum:  Number(String(i[6]).split('%')[0]),
                recentNetVol: Number(i[6]),
                btcPrice: '',
                coinHigh: '',
                coinLow: '',
                dailyVol: '',
                dailyPriceChange: '',
                firstPingPrice: Number(i[8]),
            }
        }
        pings.push(ping)
    }
})
return pings

} enter code here