64.58% is the change from 511 to 841
Calculation steps:
[( 841 - 511 ) ÷ 511] x 100 = 64.58%
Formula
Percentage change = [(841 - 511) / 511] x 100
Subtract the new number by the original number
841 - 511 = 330
330 ÷ 511 = 0.6457925636007827
0.6457925636007827 x 100 = 64.58%