100% is the change from 206 to 412
Calculation steps:
[( 412 - 206 ) ÷ 206] x 100 = 100%
Formula
Percentage change = [(412 - 206) / 206] x 100
Subtract the new number by the original number
412 - 206 = 206
206 ÷ 206 = 1
1 x 100 = 100%
Example