312% is the change from 50 to 206
Calculation steps:
[( 206 - 50 ) ÷ 50] x 100 = 312%
Formula
Percentage change = [(206 - 50) / 50] x 100
Subtract the new number by the original number
206 - 50 = 156
156 ÷ 50 = 3.12
3.12 x 100 = 312%
Example