265.71% is the change from 175 to 640
Calculation steps:
[( 640 - 175 ) ÷ 175] x 100 = 265.71%
Formula
Percentage change = [(640 - 175) / 175] x 100
Subtract the new number by the original number
640 - 175 = 465
465 ÷ 175 = 2.657142857142857
2.657142857142857 x 100 = 265.71%