64.95% is the change from 505 to 833
Calculation steps:
[( 833 - 505 ) ÷ 505] x 100 = 64.95%
Formula
Percentage change = [(833 - 505) / 505] x 100
Subtract the new number by the original number
833 - 505 = 328
328 ÷ 505 = 0.6495049504950495
0.6495049504950495 x 100 = 64.95%