-34.23% is the change from 631 to 415
Calculation steps:
[( 415 - 631 ) ÷ 631] x 100 = -34.23%
Formula
Percentage change = [(415 - 631) / 631] x 100
Subtract the new number by the original number
415 - 631 = -216
-216 ÷ 631 = -0.34231378763866877
-0.34231378763866877 x 100 = -34.23%