81.92% is the change from 520 to 946
Calculation steps:
[( 946 - 520 ) ÷ 520] x 100 = 81.92%
Formula
Percentage change = [(946 - 520) / 520] x 100
Subtract the new number by the original number
946 - 520 = 426
426 ÷ 520 = 0.8192307692307692
0.8192307692307692 x 100 = 81.92%