-8.55% is the change from 912 to 834
Calculation steps:
[( 834 - 912 ) ÷ 912] x 100 = -8.55%
Formula
Percentage change = [(834 - 912) / 912] x 100
Subtract the new number by the original number
834 - 912 = -78
-78 ÷ 912 = -0.08552631578947369
-0.08552631578947369 x 100 = -8.55%