78.06% is the change from 155 to 276
Calculation steps:
[( 276 - 155 ) ÷ 155] x 100 = 78.06%
Formula
Percentage change = [(276 - 155) / 155] x 100
Subtract the new number by the original number
276 - 155 = 121
121 ÷ 155 = 0.7806451612903226
0.7806451612903226 x 100 = 78.06%