5110% is the change from 10 to 521
Calculation steps:
[( 521 - 10 ) ÷ 10] x 100 = 5110%
Formula
Percentage change = [(521 - 10) / 10] x 100
Subtract the new number by the original number
521 - 10 = 511
511 ÷ 10 = 51.1
51.1 x 100 = 5110%
Example