179.3% is the change from 256 to 715
Calculation steps:
[( 715 - 256 ) ÷ 256] x 100 = 179.3%
Formula
Percentage change = [(715 - 256) / 256] x 100
Subtract the new number by the original number
715 - 256 = 459
459 ÷ 256 = 1.79296875
1.79296875 x 100 = 179.3%