76.74% is the change from 258 to 456
Calculation steps:
[( 456 - 258 ) ÷ 258] x 100 = 76.74%
Formula
Percentage change = [(456 - 258) / 258] x 100
Subtract the new number by the original number
456 - 258 = 198
198 ÷ 258 = 0.7674418604651163
0.7674418604651163 x 100 = 76.74%