-25.89% is the change from 869 to 644
Calculation steps:
[( 644 - 869 ) ÷ 869] x 100 = -25.89%
Formula
Percentage change = [(644 - 869) / 869] x 100
Subtract the new number by the original number
644 - 869 = -225
-225 ÷ 869 = -0.25891829689298046
-0.25891829689298046 x 100 = -25.89%