707.94% is the change from 63 to 509
Calculation steps:
[( 509 - 63 ) ÷ 63] x 100 = 707.94%
Formula
Percentage change = [(509 - 63) / 63] x 100
Subtract the new number by the original number
509 - 63 = 446
446 ÷ 63 = 7.079365079365079
7.079365079365079 x 100 = 707.94%