68.3% is the change from 511 to 860
Calculation steps:
[( 860 - 511 ) ÷ 511] x 100 = 68.3%
Formula
Percentage change = [(860 - 511) / 511] x 100
Subtract the new number by the original number
860 - 511 = 349
349 ÷ 511 = 0.6829745596868885
0.6829745596868885 x 100 = 68.3%