840.74% is the change from 27 to 254
Calculation steps:
[( 254 - 27 ) ÷ 27] x 100 = 840.74%
Formula
Percentage change = [(254 - 27) / 27] x 100
Subtract the new number by the original number
254 - 27 = 227
227 ÷ 27 = 8.407407407407407
8.407407407407407 x 100 = 840.74%