56.22% is the change from 450 to 703
Calculation steps:
[( 703 - 450 ) ÷ 450] x 100 = 56.22%
Formula
Percentage change = [(703 - 450) / 450] x 100
Subtract the new number by the original number
703 - 450 = 253
253 ÷ 450 = 0.5622222222222222
0.5622222222222222 x 100 = 56.22%