83.49% is the change from 212 to 389
Calculation steps:
[( 389 - 212 ) ÷ 212] x 100 = 83.49%
Formula
Percentage change = [(389 - 212) / 212] x 100
Subtract the new number by the original number
389 - 212 = 177
177 ÷ 212 = 0.8349056603773585
0.8349056603773585 x 100 = 83.49%