-84.7% is the change from 549 to 84
Calculation steps:
[( 84 - 549 ) ÷ 549] x 100 = -84.7%
Formula
Percentage change = [(84 - 549) / 549] x 100
Subtract the new number by the original number
84 - 549 = -465
-465 ÷ 549 = -0.8469945355191257
-0.8469945355191257 x 100 = -84.7%