This research analyzes the financial performance of PT. West Kalimantan Regional Development Bank using trend analysis of profitability ratios (ROA and ROE) over the years 2010-2017, revealing a declining trend in profitability. It employs the least square method to predict ongoing performance from 2018 to 2021, indicating a consistent decrease in profitability ratios. The findings underscore the bank's role in economic development and the critical need for sustainable financial strategies.