-31.62% is the change from 623 to 426
Calculation steps:
[( 426 - 623 ) ÷ 623] x 100 = -31.62%
Formula
Percentage change = [(426 - 623) / 623] x 100
Subtract the new number by the original number
426 - 623 = -197
-197 ÷ 623 = -0.3162118780096308
-0.3162118780096308 x 100 = -31.62%