-35.76% is the change from 646 to 415
Calculation steps:
[( 415 - 646 ) ÷ 646] x 100 = -35.76%
Formula
Percentage change = [(415 - 646) / 646] x 100
Subtract the new number by the original number
415 - 646 = -231
-231 ÷ 646 = -0.35758513931888547
-0.35758513931888547 x 100 = -35.76%