147.51% is the change from 261 to 646
Calculation steps:
[( 646 - 261 ) ÷ 261] x 100 = 147.51%
Formula
Percentage change = [(646 - 261) / 261] x 100
Subtract the new number by the original number
646 - 261 = 385
385 ÷ 261 = 1.475095785440613
1.475095785440613 x 100 = 147.51%