30.7% is the change from 456 to 596
Calculation steps:
[( 596 - 456 ) ÷ 456] x 100 = 30.7%
Formula
Percentage change = [(596 - 456) / 456] x 100
Subtract the new number by the original number
596 - 456 = 140
140 ÷ 456 = 0.30701754385964913
0.30701754385964913 x 100 = 30.7%