60.8% is the change from 199 to 320
Calculation steps:
[( 320 - 199 ) ÷ 199] x 100 = 60.8%
Formula
Percentage change = [(320 - 199) / 199] x 100
Subtract the new number by the original number
320 - 199 = 121
121 ÷ 199 = 0.6080402010050251
0.6080402010050251 x 100 = 60.8%