-69.58% is the change from 664 to 202
Calculation steps:
[( 202 - 664 ) ÷ 664] x 100 = -69.58%
Formula
Percentage change = [(202 - 664) / 664] x 100
Subtract the new number by the original number
202 - 664 = -462
-462 ÷ 664 = -0.6957831325301205
-0.6957831325301205 x 100 = -69.58%