43.19% is the change from 521 to 746
Calculation steps:
[( 746 - 521 ) ÷ 521] x 100 = 43.19%
Formula
Percentage change = [(746 - 521) / 521] x 100
Subtract the new number by the original number
746 - 521 = 225
225 ÷ 521 = 0.43186180422264875
0.43186180422264875 x 100 = 43.19%