-83.06% is the change from 549 to 93
Calculation steps:
[( 93 - 549 ) ÷ 549] x 100 = -83.06%
Formula
Percentage change = [(93 - 549) / 549] x 100
Subtract the new number by the original number
93 - 549 = -456
-456 ÷ 549 = -0.8306010928961749
-0.8306010928961749 x 100 = -83.06%