-29.06% is the change from 912 to 647
Calculation steps:
[( 647 - 912 ) ÷ 912] x 100 = -29.06%
Formula
Percentage change = [(647 - 912) / 912] x 100
Subtract the new number by the original number
647 - 912 = -265
-265 ÷ 912 = -0.2905701754385965
-0.2905701754385965 x 100 = -29.06%