1.56% is the change from 513 to 521
Calculation steps:
[( 521 - 513 ) ÷ 513] x 100 = 1.56%
Formula
Percentage change = [(521 - 513) / 513] x 100
Subtract the new number by the original number
521 - 513 = 8
8 ÷ 513 = 0.015594541910331383
0.015594541910331383 x 100 = 1.56%