-73.19% is the change from 634 to 170
Calculation steps:
[( 170 - 634 ) ÷ 634] x 100 = -73.19%
Formula
Percentage change = [(170 - 634) / 634] x 100
Subtract the new number by the original number
170 - 634 = -464
-464 ÷ 634 = -0.7318611987381703
-0.7318611987381703 x 100 = -73.19%