66.14% is the change from 511 to 849
Calculation steps:
[( 849 - 511 ) ÷ 511] x 100 = 66.14%
Formula
Percentage change = [(849 - 511) / 511] x 100
Subtract the new number by the original number
849 - 511 = 338
338 ÷ 511 = 0.6614481409001957
0.6614481409001957 x 100 = 66.14%