-26.7% is the change from 869 to 637
Calculation steps:
[( 637 - 869 ) ÷ 869] x 100 = -26.7%
Formula
Percentage change = [(637 - 869) / 869] x 100
Subtract the new number by the original number
637 - 869 = -232
-232 ÷ 869 = -0.2669735327963176
-0.2669735327963176 x 100 = -26.7%