254.97% is the change from 191 to 678
Calculation steps:
[( 678 - 191 ) ÷ 191] x 100 = 254.97%
Formula
Percentage change = [(678 - 191) / 191] x 100
Subtract the new number by the original number
678 - 191 = 487
487 ÷ 191 = 2.549738219895288
2.549738219895288 x 100 = 254.97%