3.3% is the change from 485 to 501
Calculation steps:
[( 501 - 485 ) ÷ 485] x 100 = 3.3%
Formula
Percentage change = [(501 - 485) / 485] x 100
Subtract the new number by the original number
501 - 485 = 16
16 ÷ 485 = 0.032989690721649485
0.032989690721649485 x 100 = 3.3%