-86.89% is the change from 549 to 72
Calculation steps:
[( 72 - 549 ) ÷ 549] x 100 = -86.89%
Formula
Percentage change = [(72 - 549) / 549] x 100
Subtract the new number by the original number
72 - 549 = -477
-477 ÷ 549 = -0.8688524590163934
-0.8688524590163934 x 100 = -86.89%