103.45% is the change from 261 to 531
Calculation steps:
[( 531 - 261 ) ÷ 261] x 100 = 103.45%
Formula
Percentage change = [(531 - 261) / 261] x 100
Subtract the new number by the original number
531 - 261 = 270
270 ÷ 261 = 1.0344827586206897
1.0344827586206897 x 100 = 103.45%