-89.08% is the change from 650 to 71
Calculation steps:
[( 71 - 650 ) ÷ 650] x 100 = -89.08%
Formula
Percentage change = [(71 - 650) / 650] x 100
Subtract the new number by the original number
71 - 650 = -579
-579 ÷ 650 = -0.8907692307692308
-0.8907692307692308 x 100 = -89.08%