67.48% is the change from 206 to 345
Calculation steps:
[( 345 - 206 ) ÷ 206] x 100 = 67.48%
Formula
Percentage change = [(345 - 206) / 206] x 100
Subtract the new number by the original number
345 - 206 = 139
139 ÷ 206 = 0.6747572815533981
0.6747572815533981 x 100 = 67.48%