259.79% is the change from 189 to 680
Calculation steps:
[( 680 - 189 ) ÷ 189] x 100 = 259.79%
Formula
Percentage change = [(680 - 189) / 189] x 100
Subtract the new number by the original number
680 - 189 = 491
491 ÷ 189 = 2.5978835978835977
2.5978835978835977 x 100 = 259.79%