-64.68% is the change from 637 to 225
Calculation steps:
[( 225 - 637 ) ÷ 637] x 100 = -64.68%
Formula
Percentage change = [(225 - 637) / 637] x 100
Subtract the new number by the original number
225 - 637 = -412
-412 ÷ 637 = -0.6467817896389325
-0.6467817896389325 x 100 = -64.68%