-70.03% is the change from 634 to 190
Calculation steps:
[( 190 - 634 ) ÷ 634] x 100 = -70.03%
Formula
Percentage change = [(190 - 634) / 634] x 100
Subtract the new number by the original number
190 - 634 = -444
-444 ÷ 634 = -0.7003154574132492
-0.7003154574132492 x 100 = -70.03%