82.3% is the change from 209 to 381
Calculation steps:
[( 381 - 209 ) ÷ 209] x 100 = 82.3%
Formula
Percentage change = [(381 - 209) / 209] x 100
Subtract the new number by the original number
381 - 209 = 172
172 ÷ 209 = 0.8229665071770335
0.8229665071770335 x 100 = 82.3%