150% is the change from 268 to 670
Calculation steps:
[( 670 - 268 ) ÷ 268] x 100 = 150%
Formula
Percentage change = [(670 - 268) / 268] x 100
Subtract the new number by the original number
670 - 268 = 402
402 ÷ 268 = 1.5
1.5 x 100 = 150%
Example