230.77% is the change from 195 to 645
Calculation steps:
[( 645 - 195 ) ÷ 195] x 100 = 230.77%
Formula
Percentage change = [(645 - 195) / 195] x 100
Subtract the new number by the original number
645 - 195 = 450
450 ÷ 195 = 2.3076923076923075
2.3076923076923075 x 100 = 230.77%