-83.97% is the change from 549 to 88
Calculation steps:
[( 88 - 549 ) ÷ 549] x 100 = -83.97%
Formula
Percentage change = [(88 - 549) / 549] x 100
Subtract the new number by the original number
88 - 549 = -461
-461 ÷ 549 = -0.8397085610200364
-0.8397085610200364 x 100 = -83.97%