-87.77% is the change from 278 to 34
Calculation steps:
[( 34 - 278 ) ÷ 278] x 100 = -87.77%
Formula
Percentage change = [(34 - 278) / 278] x 100
Subtract the new number by the original number
34 - 278 = -244
-244 ÷ 278 = -0.8776978417266187
-0.8776978417266187 x 100 = -87.77%