-39.8% is the change from 912 to 549
Calculation steps:
[( 549 - 912 ) ÷ 912] x 100 = -39.8%
Formula
Percentage change = [(549 - 912) / 912] x 100
Subtract the new number by the original number
549 - 912 = -363
-363 ÷ 912 = -0.3980263157894737
-0.3980263157894737 x 100 = -39.8%