52.13% is the change from 211 to 321
Calculation steps:
[( 321 - 211 ) ÷ 211] x 100 = 52.13%
Formula
Percentage change = [(321 - 211) / 211] x 100
Subtract the new number by the original number
321 - 211 = 110
110 ÷ 211 = 0.5213270142180095
0.5213270142180095 x 100 = 52.13%