182.52% is the change from 309 to 873
Calculation steps:
[( 873 - 309 ) ÷ 309] x 100 = 182.52%
Formula
Percentage change = [(873 - 309) / 309] x 100
Subtract the new number by the original number
873 - 309 = 564
564 ÷ 309 = 1.825242718446602
1.825242718446602 x 100 = 182.52%