91.19% is the change from 511 to 977
Calculation steps:
[( 977 - 511 ) ÷ 511] x 100 = 91.19%
Formula
Percentage change = [(977 - 511) / 511] x 100
Subtract the new number by the original number
977 - 511 = 466
466 ÷ 511 = 0.9119373776908023
0.9119373776908023 x 100 = 91.19%