81.29% is the change from 155 to 281
Calculation steps:
[( 281 - 155 ) ÷ 155] x 100 = 81.29%
Formula
Percentage change = [(281 - 155) / 155] x 100
Subtract the new number by the original number
281 - 155 = 126
126 ÷ 155 = 0.8129032258064516
0.8129032258064516 x 100 = 81.29%