91.78% is the change from 511 to 980
Calculation steps:
[( 980 - 511 ) ÷ 511] x 100 = 91.78%
Formula
Percentage change = [(980 - 511) / 511] x 100
Subtract the new number by the original number
980 - 511 = 469
469 ÷ 511 = 0.9178082191780822
0.9178082191780822 x 100 = 91.78%