-66.82% is the change from 642 to 213
Calculation steps:
[( 213 - 642 ) ÷ 642] x 100 = -66.82%
Formula
Percentage change = [(213 - 642) / 642] x 100
Subtract the new number by the original number
213 - 642 = -429
-429 ÷ 642 = -0.6682242990654206
-0.6682242990654206 x 100 = -66.82%