static async Task <YahooModel> grabData(String s)
{
using (var client = new HttpClient())
{
Console.WriteLine("starting" + s);
String url = "https://financialmodelingprep.com/api/v3/historical-price-full/" + s.ToUpper() + "?apikey=4992d801ad7f4e2b40e12d596b5dbcae&from=1900-10-10";
var response = await client.GetStringAsync(url);
YahooModel returnObj = JsonConvert.DeserializeObject <YahooModel>(response);
Console.WriteLine("ending" + s);
return(returnObj);
}
}
String percentChange(YahooModel m)
{