67.13% is the change from 505 to 844
Calculation steps:
[( 844 - 505 ) ÷ 505] x 100 = 67.13%
Formula
Percentage change = [(844 - 505) / 505] x 100
Subtract the new number by the original number
844 - 505 = 339
339 ÷ 505 = 0.6712871287128713
0.6712871287128713 x 100 = 67.13%