81.82% is the change from 154 to 280
Calculation steps:
[( 280 - 154 ) ÷ 154] x 100 = 81.82%
Formula
Percentage change = [(280 - 154) / 154] x 100
Subtract the new number by the original number
280 - 154 = 126
126 ÷ 154 = 0.8181818181818182
0.8181818181818182 x 100 = 81.82%