83.3% is the change from 509 to 933
Calculation steps:
[( 933 - 509 ) ÷ 509] x 100 = 83.3%
Formula
Percentage change = [(933 - 509) / 509] x 100
Subtract the new number by the original number
933 - 509 = 424
424 ÷ 509 = 0.8330058939096268
0.8330058939096268 x 100 = 83.3%