-69.4% is the change from 549 to 168
Calculation steps:
[( 168 - 549 ) ÷ 549] x 100 = -69.4%
Formula
Percentage change = [(168 - 549) / 549] x 100
Subtract the new number by the original number
168 - 549 = -381
-381 ÷ 549 = -0.6939890710382514
-0.6939890710382514 x 100 = -69.4%