86.25% is the change from 509 to 948
Calculation steps:
[( 948 - 509 ) ÷ 509] x 100 = 86.25%
Formula
Percentage change = [(948 - 509) / 509] x 100
Subtract the new number by the original number
948 - 509 = 439
439 ÷ 509 = 0.862475442043222
0.862475442043222 x 100 = 86.25%