-80.87% is the change from 549 to 105
Calculation steps:
[( 105 - 549 ) ÷ 549] x 100 = -80.87%
Formula
Percentage change = [(105 - 549) / 549] x 100
Subtract the new number by the original number
105 - 549 = -444
-444 ÷ 549 = -0.8087431693989071
-0.8087431693989071 x 100 = -80.87%