-66.13% is the change from 623 to 211
Calculation steps:
[( 211 - 623 ) ÷ 623] x 100 = -66.13%
Formula
Percentage change = [(211 - 623) / 623] x 100
Subtract the new number by the original number
211 - 623 = -412
-412 ÷ 623 = -0.6613162118780096
-0.6613162118780096 x 100 = -66.13%