-15.04% is the change from 904 to 768
Calculation steps:
[( 768 - 904 ) ÷ 904] x 100 = -15.04%
Formula
Percentage change = [(768 - 904) / 904] x 100
Subtract the new number by the original number
768 - 904 = -136
-136 ÷ 904 = -0.1504424778761062
-0.1504424778761062 x 100 = -15.04%