87.03% is the change from 509 to 952
Calculation steps:
[( 952 - 509 ) ÷ 509] x 100 = 87.03%
Formula
Percentage change = [(952 - 509) / 509] x 100
Subtract the new number by the original number
952 - 509 = 443
443 ÷ 509 = 0.8703339882121808
0.8703339882121808 x 100 = 87.03%