231.72% is the change from 145 to 481
Calculation steps:
[( 481 - 145 ) ÷ 145] x 100 = 231.72%
Formula
Percentage change = [(481 - 145) / 145] x 100
Subtract the new number by the original number
481 - 145 = 336
336 ÷ 145 = 2.317241379310345
2.317241379310345 x 100 = 231.72%