-66.45% is the change from 912 to 306
Calculation steps:
[( 306 - 912 ) ÷ 912] x 100 = -66.45%
Formula
Percentage change = [(306 - 912) / 912] x 100
Subtract the new number by the original number
306 - 912 = -606
-606 ÷ 912 = -0.6644736842105263
-0.6644736842105263 x 100 = -66.45%