136.75% is the change from 283 to 670
Calculation steps:
[( 670 - 283 ) ÷ 283] x 100 = 136.75%
Formula
Percentage change = [(670 - 283) / 283] x 100
Subtract the new number by the original number
670 - 283 = 387
387 ÷ 283 = 1.3674911660777385
1.3674911660777385 x 100 = 136.75%