-79.46% is the change from 667 to 137
Calculation steps:
[( 137 - 667 ) ÷ 667] x 100 = -79.46%
Formula
Percentage change = [(137 - 667) / 667] x 100
Subtract the new number by the original number
137 - 667 = -530
-530 ÷ 667 = -0.7946026986506747
-0.7946026986506747 x 100 = -79.46%