-9.62% is the change from 904 to 817
Calculation steps:
[( 817 - 904 ) ÷ 904] x 100 = -9.62%
Formula
Percentage change = [(817 - 904) / 904] x 100
Subtract the new number by the original number
817 - 904 = -87
-87 ÷ 904 = -0.09623893805309734
-0.09623893805309734 x 100 = -9.62%