29.75% is the change from 511 to 663
Calculation steps:
[( 663 - 511 ) ÷ 511] x 100 = 29.75%
Formula
Percentage change = [(663 - 511) / 511] x 100
Subtract the new number by the original number
663 - 511 = 152
152 ÷ 511 = 0.2974559686888454
0.2974559686888454 x 100 = 29.75%