129.5% is the change from 261 to 599
Calculation steps:
[( 599 - 261 ) ÷ 261] x 100 = 129.5%
Formula
Percentage change = [(599 - 261) / 261] x 100
Subtract the new number by the original number
599 - 261 = 338
338 ÷ 261 = 1.2950191570881227
1.2950191570881227 x 100 = 129.5%