307.33% is the change from 191 to 778
Calculation steps:
[( 778 - 191 ) ÷ 191] x 100 = 307.33%
Formula
Percentage change = [(778 - 191) / 191] x 100
Subtract the new number by the original number
778 - 191 = 587
587 ÷ 191 = 3.073298429319372
3.073298429319372 x 100 = 307.33%