482.94% is the change from 170 to 991
Calculation steps:
[( 991 - 170 ) ÷ 170] x 100 = 482.94%
Formula
Percentage change = [(991 - 170) / 170] x 100
Subtract the new number by the original number
991 - 170 = 821
821 ÷ 170 = 4.829411764705882
4.829411764705882 x 100 = 482.94%