-35.47% is the change from 623 to 402
Calculation steps:
[( 402 - 623 ) ÷ 623] x 100 = -35.47%
Formula
Percentage change = [(402 - 623) / 623] x 100
Subtract the new number by the original number
402 - 623 = -221
-221 ÷ 623 = -0.3547351524879615
-0.3547351524879615 x 100 = -35.47%