-9.03% is the change from 842 to 766
Calculation steps:
[( 766 - 842 ) ÷ 842] x 100 = -9.03%
Formula
Percentage change = [(766 - 842) / 842] x 100
Subtract the new number by the original number
766 - 842 = -76
-76 ÷ 842 = -0.09026128266033254
-0.09026128266033254 x 100 = -9.03%