39.6% is the change from 505 to 705
Calculation steps:
[( 705 - 505 ) ÷ 505] x 100 = 39.6%
Formula
Percentage change = [(705 - 505) / 505] x 100
Subtract the new number by the original number
705 - 505 = 200
200 ÷ 505 = 0.39603960396039606
0.39603960396039606 x 100 = 39.6%