83.02% is the change from 212 to 388
Calculation steps:
[( 388 - 212 ) ÷ 212] x 100 = 83.02%
Formula
Percentage change = [(388 - 212) / 212] x 100
Subtract the new number by the original number
388 - 212 = 176
176 ÷ 212 = 0.8301886792452831
0.8301886792452831 x 100 = 83.02%