126.02% is the change from 123 to 278
Calculation steps:
[( 278 - 123 ) ÷ 123] x 100 = 126.02%
Formula
Percentage change = [(278 - 123) / 123] x 100
Subtract the new number by the original number
278 - 123 = 155
155 ÷ 123 = 1.2601626016260163
1.2601626016260163 x 100 = 126.02%