-78.95% is the change from 917 to 193
Calculation steps:
[( 193 - 917 ) ÷ 917] x 100 = -78.95%
Formula
Percentage change = [(193 - 917) / 917] x 100
Subtract the new number by the original number
193 - 917 = -724
-724 ÷ 917 = -0.7895310796074155
-0.7895310796074155 x 100 = -78.95%