19.93% is the change from 276 to 331
Calculation steps:
[( 331 - 276 ) ÷ 276] x 100 = 19.93%
Formula
Percentage change = [(331 - 276) / 276] x 100
Subtract the new number by the original number
331 - 276 = 55
55 ÷ 276 = 0.19927536231884058
0.19927536231884058 x 100 = 19.93%