173.14% is the change from 309 to 844
Calculation steps:
[( 844 - 309 ) ÷ 309] x 100 = 173.14%
Formula
Percentage change = [(844 - 309) / 309] x 100
Subtract the new number by the original number
844 - 309 = 535
535 ÷ 309 = 1.7313915857605178
1.7313915857605178 x 100 = 173.14%