68.1% is the change from 511 to 859
Calculation steps:
[( 859 - 511 ) ÷ 511] x 100 = 68.1%
Formula
Percentage change = [(859 - 511) / 511] x 100
Subtract the new number by the original number
859 - 511 = 348
348 ÷ 511 = 0.6810176125244618
0.6810176125244618 x 100 = 68.1%