-35.35% is the change from 645 to 417
Calculation steps:
[( 417 - 645 ) ÷ 645] x 100 = -35.35%
Formula
Percentage change = [(417 - 645) / 645] x 100
Subtract the new number by the original number
417 - 645 = -228
-228 ÷ 645 = -0.35348837209302325
-0.35348837209302325 x 100 = -35.35%