By Manya Saini (Reuters) – Several high-flying startups are being brought down to earth, as a recent carnage in global equity markets and lackluster demand for new listings force companies to raise funds at a substantial discount to their sky-high valuations. Easy money from venture capital dealmaking is fast evaporating in an inflation-induced high interest-rate environment as many private investors take a hard look at funding startups, many of which could be years away from turning a profit. Already high-profile companies such as payments firm Stripe, Swedish buy-now-pay-later firm Klarna an…