255.8% is the change from 181 to 644
Calculation steps:
[( 644 - 181 ) ÷ 181] x 100 = 255.8%
Formula
Percentage change = [(644 - 181) / 181] x 100
Subtract the new number by the original number
644 - 181 = 463
463 ÷ 181 = 2.5580110497237567
2.5580110497237567 x 100 = 255.8%