-76.71% is the change from 923 to 215
Calculation steps:
[( 215 - 923 ) ÷ 923] x 100 = -76.71%
Formula
Percentage change = [(215 - 923) / 923] x 100
Subtract the new number by the original number
215 - 923 = -708
-708 ÷ 923 = -0.7670639219934995
-0.7670639219934995 x 100 = -76.71%