-65.22% is the change from 647 to 225
Calculation steps:
[( 225 - 647 ) ÷ 647] x 100 = -65.22%
Formula
Percentage change = [(225 - 647) / 647] x 100
Subtract the new number by the original number
225 - 647 = -422
-422 ÷ 647 = -0.652241112828439
-0.652241112828439 x 100 = -65.22%