96.46% is the change from 509 to 1000
Calculation steps:
[( 1000 - 509 ) ÷ 509] x 100 = 96.46%
Formula
Percentage change = [(1000 - 509) / 509] x 100
Subtract the new number by the original number
1000 - 509 = 491
491 ÷ 509 = 0.9646365422396856
0.9646365422396856 x 100 = 96.46%