205.88% is the change from 170 to 520
Calculation steps:
[( 520 - 170 ) ÷ 170] x 100 = 205.88%
Formula
Percentage change = [(520 - 170) / 170] x 100
Subtract the new number by the original number
520 - 170 = 350
350 ÷ 170 = 2.0588235294117645
2.0588235294117645 x 100 = 205.88%