-85.46% is the change from 667 to 97
Calculation steps:
[( 97 - 667 ) ÷ 667] x 100 = -85.46%
Formula
Percentage change = [(97 - 667) / 667] x 100
Subtract the new number by the original number
97 - 667 = -570
-570 ÷ 667 = -0.8545727136431784
-0.8545727136431784 x 100 = -85.46%