54.59% is the change from 207 to 320
Calculation steps:
[( 320 - 207 ) ÷ 207] x 100 = 54.59%
Formula
Percentage change = [(320 - 207) / 207] x 100
Subtract the new number by the original number
320 - 207 = 113
113 ÷ 207 = 0.5458937198067633
0.5458937198067633 x 100 = 54.59%