243.59% is the change from 195 to 670
Calculation steps:
[( 670 - 195 ) ÷ 195] x 100 = 243.59%
Formula
Percentage change = [(670 - 195) / 195] x 100
Subtract the new number by the original number
670 - 195 = 475
475 ÷ 195 = 2.4358974358974357
2.4358974358974357 x 100 = 243.59%