-40.97% is the change from 930 to 549
Calculation steps:
[( 549 - 930 ) ÷ 930] x 100 = -40.97%
Formula
Percentage change = [(549 - 930) / 930] x 100
Subtract the new number by the original number
549 - 930 = -381
-381 ÷ 930 = -0.4096774193548387
-0.4096774193548387 x 100 = -40.97%