64.77% is the change from 511 to 842
Calculation steps:
[( 842 - 511 ) ÷ 511] x 100 = 64.77%
Formula
Percentage change = [(842 - 511) / 511] x 100
Subtract the new number by the original number
842 - 511 = 331
331 ÷ 511 = 0.6477495107632094
0.6477495107632094 x 100 = 64.77%