84.36% is the change from 505 to 931
Calculation steps:
[( 931 - 505 ) ÷ 505] x 100 = 84.36%
Formula
Percentage change = [(931 - 505) / 505] x 100
Subtract the new number by the original number
931 - 505 = 426
426 ÷ 505 = 0.8435643564356435
0.8435643564356435 x 100 = 84.36%