-69.88% is the change from 923 to 278
Calculation steps:
[( 278 - 923 ) ÷ 923] x 100 = -69.88%
Formula
Percentage change = [(278 - 923) / 923] x 100
Subtract the new number by the original number
278 - 923 = -645
-645 ÷ 923 = -0.6988082340195017
-0.6988082340195017 x 100 = -69.88%