-75.8% is the change from 715 to 173
Calculation steps:
[( 173 - 715 ) ÷ 715] x 100 = -75.8%
Formula
Percentage change = [(173 - 715) / 715] x 100
Subtract the new number by the original number
173 - 715 = -542
-542 ÷ 715 = -0.7580419580419581
-0.7580419580419581 x 100 = -75.8%