41.47% is the change from 340 to 481
Calculation steps:
[( 481 - 340 ) ÷ 340] x 100 = 41.47%
Formula
Percentage change = [(481 - 340) / 340] x 100
Subtract the new number by the original number
481 - 340 = 141
141 ÷ 340 = 0.4147058823529412
0.4147058823529412 x 100 = 41.47%