-84.15% is the change from 549 to 87
Calculation steps:
[( 87 - 549 ) ÷ 549] x 100 = -84.15%
Formula
Percentage change = [(87 - 549) / 549] x 100
Subtract the new number by the original number
87 - 549 = -462
-462 ÷ 549 = -0.8415300546448088
-0.8415300546448088 x 100 = -84.15%