45.5% is the change from 211 to 307
Calculation steps:
[( 307 - 211 ) ÷ 211] x 100 = 45.5%
Formula
Percentage change = [(307 - 211) / 211] x 100
Subtract the new number by the original number
307 - 211 = 96
96 ÷ 211 = 0.4549763033175355
0.4549763033175355 x 100 = 45.5%