-66.74% is the change from 920 to 306
Calculation steps:
[( 306 - 920 ) ÷ 920] x 100 = -66.74%
Formula
Percentage change = [(306 - 920) / 920] x 100
Subtract the new number by the original number
306 - 920 = -614
-614 ÷ 920 = -0.6673913043478261
-0.6673913043478261 x 100 = -66.74%