261.9% is the change from 189 to 684
Calculation steps:
[( 684 - 189 ) ÷ 189] x 100 = 261.9%
Formula
Percentage change = [(684 - 189) / 189] x 100
Subtract the new number by the original number
684 - 189 = 495
495 ÷ 189 = 2.619047619047619
2.619047619047619 x 100 = 261.9%