-75.07% is the change from 670 to 167
Calculation steps:
[( 167 - 670 ) ÷ 670] x 100 = -75.07%
Formula
Percentage change = [(167 - 670) / 670] x 100
Subtract the new number by the original number
167 - 670 = -503
-503 ÷ 670 = -0.7507462686567165
-0.7507462686567165 x 100 = -75.07%