64.1% is the change from 195 to 320
Calculation steps:
[( 320 - 195 ) ÷ 195] x 100 = 64.1%
Formula
Percentage change = [(320 - 195) / 195] x 100
Subtract the new number by the original number
320 - 195 = 125
125 ÷ 195 = 0.6410256410256411
0.6410256410256411 x 100 = 64.1%