91.51% is the change from 212 to 406
Calculation steps:
[( 406 - 212 ) ÷ 212] x 100 = 91.51%
Formula
Percentage change = [(406 - 212) / 212] x 100
Subtract the new number by the original number
406 - 212 = 194
194 ÷ 212 = 0.9150943396226415
0.9150943396226415 x 100 = 91.51%