-87.68% is the change from 276 to 34
Calculation steps:
[( 34 - 276 ) ÷ 276] x 100 = -87.68%
Formula
Percentage change = [(34 - 276) / 276] x 100
Subtract the new number by the original number
34 - 276 = -242
-242 ÷ 276 = -0.8768115942028986
-0.8768115942028986 x 100 = -87.68%