-87.8% is the change from 549 to 67
Calculation steps:
[( 67 - 549 ) ÷ 549] x 100 = -87.8%
Formula
Percentage change = [(67 - 549) / 549] x 100
Subtract the new number by the original number
67 - 549 = -482
-482 ÷ 549 = -0.8779599271402551
-0.8779599271402551 x 100 = -87.8%