-79.27% is the change from 193 to 40
Calculation steps:
[( 40 - 193 ) ÷ 193] x 100 = -79.27%
Formula
Percentage change = [(40 - 193) / 193] x 100
Subtract the new number by the original number
40 - 193 = -153
-153 ÷ 193 = -0.7927461139896373
-0.7927461139896373 x 100 = -79.27%