-77.42% is the change from 766 to 173
Calculation steps:
[( 173 - 766 ) ÷ 766] x 100 = -77.42%
Formula
Percentage change = [(173 - 766) / 766] x 100
Subtract the new number by the original number
173 - 766 = -593
-593 ÷ 766 = -0.7741514360313316
-0.7741514360313316 x 100 = -77.42%