85.17% is the change from 209 to 387
Calculation steps:
[( 387 - 209 ) ÷ 209] x 100 = 85.17%
Formula
Percentage change = [(387 - 209) / 209] x 100
Subtract the new number by the original number
387 - 209 = 178
178 ÷ 209 = 0.8516746411483254
0.8516746411483254 x 100 = 85.17%