54.65% is the change from 505 to 781
Calculation steps:
[( 781 - 505 ) ÷ 505] x 100 = 54.65%
Formula
Percentage change = [(781 - 505) / 505] x 100
Subtract the new number by the original number
781 - 505 = 276
276 ÷ 505 = 0.5465346534653466
0.5465346534653466 x 100 = 54.65%