90.1% is the change from 505 to 960
Calculation steps:
[( 960 - 505 ) ÷ 505] x 100 = 90.1%
Formula
Percentage change = [(960 - 505) / 505] x 100
Subtract the new number by the original number
960 - 505 = 455
455 ÷ 505 = 0.900990099009901
0.900990099009901 x 100 = 90.1%