-65.01% is the change from 643 to 225
Calculation steps:
[( 225 - 643 ) ÷ 643] x 100 = -65.01%
Formula
Percentage change = [(225 - 643) / 643] x 100
Subtract the new number by the original number
225 - 643 = -418
-418 ÷ 643 = -0.6500777604976672
-0.6500777604976672 x 100 = -65.01%