46.23% is the change from 212 to 310
Calculation steps:
[( 310 - 212 ) ÷ 212] x 100 = 46.23%
Formula
Percentage change = [(310 - 212) / 212] x 100
Subtract the new number by the original number
310 - 212 = 98
98 ÷ 212 = 0.46226415094339623
0.46226415094339623 x 100 = 46.23%