97.68% is the change from 259 to 512
Calculation steps:
[( 512 - 259 ) ÷ 259] x 100 = 97.68%
Formula
Percentage change = [(512 - 259) / 259] x 100
Subtract the new number by the original number
512 - 259 = 253
253 ÷ 259 = 0.9768339768339769
0.9768339768339769 x 100 = 97.68%