-73.91% is the change from 920 to 240
Calculation steps:
[( 240 - 920 ) ÷ 920] x 100 = -73.91%
Formula
Percentage change = [(240 - 920) / 920] x 100
Subtract the new number by the original number
240 - 920 = -680
-680 ÷ 920 = -0.7391304347826086
-0.7391304347826086 x 100 = -73.91%