54.67% is the change from 214 to 331
Calculation steps:
[( 331 - 214 ) ÷ 214] x 100 = 54.67%
Formula
Percentage change = [(331 - 214) / 214] x 100
Subtract the new number by the original number
331 - 214 = 117
117 ÷ 214 = 0.5467289719626168
0.5467289719626168 x 100 = 54.67%