391.51% is the change from 106 to 521
Calculation steps:
[( 521 - 106 ) ÷ 106] x 100 = 391.51%
Formula
Percentage change = [(521 - 106) / 106] x 100
Subtract the new number by the original number
521 - 106 = 415
415 ÷ 106 = 3.9150943396226414
3.9150943396226414 x 100 = 391.51%