156.7% is the change from 261 to 670
Calculation steps:
[( 670 - 261 ) ÷ 261] x 100 = 156.7%
Formula
Percentage change = [(670 - 261) / 261] x 100
Subtract the new number by the original number
670 - 261 = 409
409 ÷ 261 = 1.5670498084291187
1.5670498084291187 x 100 = 156.7%