-73.97% is the change from 634 to 165
Calculation steps:
[( 165 - 634 ) ÷ 634] x 100 = -73.97%
Formula
Percentage change = [(165 - 634) / 634] x 100
Subtract the new number by the original number
165 - 634 = -469
-469 ÷ 634 = -0.7397476340694006
-0.7397476340694006 x 100 = -73.97%