36.73% is the change from 490 to 670
Calculation steps:
[( 670 - 490 ) ÷ 490] x 100 = 36.73%
Formula
Percentage change = [(670 - 490) / 490] x 100
Subtract the new number by the original number
670 - 490 = 180
180 ÷ 490 = 0.3673469387755102
0.3673469387755102 x 100 = 36.73%