-71.15% is the change from 669 to 193
Calculation steps:
[( 193 - 669 ) ÷ 669] x 100 = -71.15%
Formula
Percentage change = [(193 - 669) / 669] x 100
Subtract the new number by the original number
193 - 669 = -476
-476 ÷ 669 = -0.7115097159940209
-0.7115097159940209 x 100 = -71.15%