-33.44% is the change from 936 to 623
Calculation steps:
[( 623 - 936 ) ÷ 936] x 100 = -33.44%
Formula
Percentage change = [(623 - 936) / 936] x 100
Subtract the new number by the original number
623 - 936 = -313
-313 ÷ 936 = -0.3344017094017094
-0.3344017094017094 x 100 = -33.44%