63.28% is the change from 128 to 209
Calculation steps:
[( 209 - 128 ) ÷ 128] x 100 = 63.28%
Formula
Percentage change = [(209 - 128) / 128] x 100
Subtract the new number by the original number
209 - 128 = 81
81 ÷ 128 = 0.6328125
0.6328125 x 100 = 63.28%