180% is the change from 175 to 490
Calculation steps:
[( 490 - 175 ) ÷ 175] x 100 = 180%
Formula
Percentage change = [(490 - 175) / 175] x 100
Subtract the new number by the original number
490 - 175 = 315
315 ÷ 175 = 1.8
1.8 x 100 = 180%
Example