121.36% is the change from 206 to 456
Calculation steps:
[( 456 - 206 ) ÷ 206] x 100 = 121.36%
Formula
Percentage change = [(456 - 206) / 206] x 100
Subtract the new number by the original number
456 - 206 = 250
250 ÷ 206 = 1.2135922330097086
1.2135922330097086 x 100 = 121.36%