0.19% is the change from 520 to 521
Calculation steps:
[( 521 - 520 ) ÷ 520] x 100 = 0.19%
Formula
Percentage change = [(521 - 520) / 520] x 100
Subtract the new number by the original number
521 - 520 = 1
1 ÷ 520 = 0.0019230769230769232
0.0019230769230769232 x 100 = 0.19%