-74.89% is the change from 920 to 231
Calculation steps:
[( 231 - 920 ) ÷ 920] x 100 = -74.89%
Formula
Percentage change = [(231 - 920) / 920] x 100
Subtract the new number by the original number
231 - 920 = -689
-689 ÷ 920 = -0.7489130434782608
-0.7489130434782608 x 100 = -74.89%