82.71% is the change from 214 to 391
Calculation steps:
[( 391 - 214 ) ÷ 214] x 100 = 82.71%
Formula
Percentage change = [(391 - 214) / 214] x 100
Subtract the new number by the original number
391 - 214 = 177
177 ÷ 214 = 0.8271028037383178
0.8271028037383178 x 100 = 82.71%