Answer with explanation:
Original Price = $250
Decreased Price = $ 150
Reduction = Original Price - Decreased Price
= $ 250 -$ 150
= $ 100
Let reduction Percentage =x %
% Reduction

x=40%
⇒40% ≠ 100%
→→→When the consumer price index (cpi) decreases from 250 to 150, prices decrease by 100% , is False Statement.