49.06% is the change from 212 to 316
Calculation steps:
[( 316 - 212 ) ÷ 212] x 100 = 49.06%
Formula
Percentage change = [(316 - 212) / 212] x 100
Subtract the new number by the original number
316 - 212 = 104
104 ÷ 212 = 0.49056603773584906
0.49056603773584906 x 100 = 49.06%