66.53% is the change from 505 to 841
Calculation steps:
[( 841 - 505 ) ÷ 505] x 100 = 66.53%
Formula
Percentage change = [(841 - 505) / 505] x 100
Subtract the new number by the original number
841 - 505 = 336
336 ÷ 505 = 0.6653465346534654
0.6653465346534654 x 100 = 66.53%