7.42% is the change from 485 to 521
Calculation steps:
[( 521 - 485 ) ÷ 485] x 100 = 7.42%
Formula
Percentage change = [(521 - 485) / 485] x 100
Subtract the new number by the original number
521 - 485 = 36
36 ÷ 485 = 0.07422680412371134
0.07422680412371134 x 100 = 7.42%