-69.77% is the change from 923 to 279
Calculation steps:
[( 279 - 923 ) ÷ 923] x 100 = -69.77%
Formula
Percentage change = [(279 - 923) / 923] x 100
Subtract the new number by the original number
279 - 923 = -644
-644 ÷ 923 = -0.6977248104008668
-0.6977248104008668 x 100 = -69.77%