17.61% is the change from 511 to 601
Calculation steps:
[( 601 - 511 ) ÷ 511] x 100 = 17.61%
Formula
Percentage change = [(601 - 511) / 511] x 100
Subtract the new number by the original number
601 - 511 = 90
90 ÷ 511 = 0.1761252446183953
0.1761252446183953 x 100 = 17.61%