88.15% is the change from 211 to 397
Calculation steps:
[( 397 - 211 ) ÷ 211] x 100 = 88.15%
Formula
Percentage change = [(397 - 211) / 211] x 100
Subtract the new number by the original number
397 - 211 = 186
186 ÷ 211 = 0.8815165876777251
0.8815165876777251 x 100 = 88.15%