-27.19% is the change from 912 to 664
Calculation steps:
[( 664 - 912 ) ÷ 912] x 100 = -27.19%
Formula
Percentage change = [(664 - 912) / 912] x 100
Subtract the new number by the original number
664 - 912 = -248
-248 ÷ 912 = -0.2719298245614035
-0.2719298245614035 x 100 = -27.19%