-71.08% is the change from 650 to 188
Calculation steps:
[( 188 - 650 ) ÷ 650] x 100 = -71.08%
Formula
Percentage change = [(188 - 650) / 650] x 100
Subtract the new number by the original number
188 - 650 = -462
-462 ÷ 650 = -0.7107692307692308
-0.7107692307692308 x 100 = -71.08%