-15.46% is the change from 912 to 771
Calculation steps:
[( 771 - 912 ) ÷ 912] x 100 = -15.46%
Formula
Percentage change = [(771 - 912) / 912] x 100
Subtract the new number by the original number
771 - 912 = -141
-141 ÷ 912 = -0.15460526315789475
-0.15460526315789475 x 100 = -15.46%