-68.38% is the change from 272 to 86
Calculation steps:
[( 86 - 272 ) ÷ 272] x 100 = -68.38%
Formula
Percentage change = [(86 - 272) / 272] x 100
Subtract the new number by the original number
86 - 272 = -186
-186 ÷ 272 = -0.6838235294117647
-0.6838235294117647 x 100 = -68.38%