50.94% is the change from 212 to 320
Calculation steps:
[( 320 - 212 ) ÷ 212] x 100 = 50.94%
Formula
Percentage change = [(320 - 212) / 212] x 100
Subtract the new number by the original number
320 - 212 = 108
108 ÷ 212 = 0.5094339622641509
0.5094339622641509 x 100 = 50.94%