-66.74% is the change from 923 to 307
Calculation steps:
[( 307 - 923 ) ÷ 923] x 100 = -66.74%
Formula
Percentage change = [(307 - 923) / 923] x 100
Subtract the new number by the original number
307 - 923 = -616
-616 ÷ 923 = -0.66738894907909
-0.66738894907909 x 100 = -66.74%