-74.85% is the change from 664 to 167
Calculation steps:
[( 167 - 664 ) ÷ 664] x 100 = -74.85%
Formula
Percentage change = [(167 - 664) / 664] x 100
Subtract the new number by the original number
167 - 664 = -497
-497 ÷ 664 = -0.7484939759036144
-0.7484939759036144 x 100 = -74.85%