78.26% is the change from 506 to 902
Calculation steps:
[( 902 - 506 ) ÷ 506] x 100 = 78.26%
Formula
Percentage change = [(902 - 506) / 506] x 100
Subtract the new number by the original number
902 - 506 = 396
396 ÷ 506 = 0.782608695652174
0.782608695652174 x 100 = 78.26%