-93.38% is the change from 272 to 18
Calculation steps:
[( 18 - 272 ) ÷ 272] x 100 = -93.38%
Formula
Percentage change = [(18 - 272) / 272] x 100
Subtract the new number by the original number
18 - 272 = -254
-254 ÷ 272 = -0.9338235294117647
-0.9338235294117647 x 100 = -93.38%