83.41% is the change from 211 to 387
Calculation steps:
[( 387 - 211 ) ÷ 211] x 100 = 83.41%
Formula
Percentage change = [(387 - 211) / 211] x 100
Subtract the new number by the original number
387 - 211 = 176
176 ÷ 211 = 0.8341232227488151
0.8341232227488151 x 100 = 83.41%