-17.24% is the change from 928 to 768
Calculation steps:
[( 768 - 928 ) ÷ 928] x 100 = -17.24%
Formula
Percentage change = [(768 - 928) / 928] x 100
Subtract the new number by the original number
768 - 928 = -160
-160 ÷ 928 = -0.1724137931034483
-0.1724137931034483 x 100 = -17.24%