-34.23% is the change from 634 to 417
Calculation steps:
[( 417 - 634 ) ÷ 634] x 100 = -34.23%
Formula
Percentage change = [(417 - 634) / 634] x 100
Subtract the new number by the original number
417 - 634 = -217
-217 ÷ 634 = -0.3422712933753943
-0.3422712933753943 x 100 = -34.23%