54.35% is the change from 506 to 781
Calculation steps:
[( 781 - 506 ) ÷ 506] x 100 = 54.35%
Formula
Percentage change = [(781 - 506) / 506] x 100
Subtract the new number by the original number
781 - 506 = 275
275 ÷ 506 = 0.5434782608695652
0.5434782608695652 x 100 = 54.35%