50% is the change from 490 to 735
Calculation steps:
[( 735 - 490 ) ÷ 490] x 100 = 50%
Formula
Percentage change = [(735 - 490) / 490] x 100
Subtract the new number by the original number
735 - 490 = 245
245 ÷ 490 = 0.5
0.5 x 100 = 50%
Example