Portfolio Migration Trend represents percentage or ratio used to assess portfolio migration trend in financial, collateral, or facility analysis. It helps compare the borrower against policy norms, peer benchmarks, and historical trends. Define numerator, denominator, period, and acceptable threshold. In MSME underwriting, it is read along with financial statements, bank statements, GST data and existing obligations to judge cash-flow strength and repayment capacity. The trend is usually more important than one isolated number, because MSME financials can be affected by seasonality, accounting treatment and one-off events. For example, the value should be compared across years and reconciled with audited statements, GST returns, bank credits and related schedules. It matters because financial interpretation can change the view on leverage, liquidity, profitability, debt-service ability and the borrower’s real operating strength. The common caution is to check calculation basis, period, exceptional items, related-party entries and consistency with GST, bank statement and audit data.