-17.29% is the change from 775 to 641
Calculation steps:
[( 641 - 775 ) ÷ 775] x 100 = -17.29%
Formula
Percentage change = [(641 - 775) / 775] x 100
Subtract the new number by the original number
641 - 775 = -134
-134 ÷ 775 = -0.17290322580645162
-0.17290322580645162 x 100 = -17.29%