88.21% is the change from 212 to 399
Calculation steps:
[( 399 - 212 ) ÷ 212] x 100 = 88.21%
Formula
Percentage change = [(399 - 212) / 212] x 100
Subtract the new number by the original number
399 - 212 = 187
187 ÷ 212 = 0.8820754716981132
0.8820754716981132 x 100 = 88.21%