69.9% is the change from 206 to 350
Calculation steps:
[( 350 - 206 ) ÷ 206] x 100 = 69.9%
Formula
Percentage change = [(350 - 206) / 206] x 100
Subtract the new number by the original number
350 - 206 = 144
144 ÷ 206 = 0.6990291262135923
0.6990291262135923 x 100 = 69.9%