55.17% is the change from 261 to 405
Calculation steps:
[( 405 - 261 ) ÷ 261] x 100 = 55.17%
Formula
Percentage change = [(405 - 261) / 261] x 100
Subtract the new number by the original number
405 - 261 = 144
144 ÷ 261 = 0.5517241379310345
0.5517241379310345 x 100 = 55.17%