51.72% is the change from 261 to 396
Calculation steps:
[( 396 - 261 ) ÷ 261] x 100 = 51.72%
Formula
Percentage change = [(396 - 261) / 261] x 100
Subtract the new number by the original number
396 - 261 = 135
135 ÷ 261 = 0.5172413793103449
0.5172413793103449 x 100 = 51.72%