-33.76% is the change from 936 to 620
Calculation steps:
[( 620 - 936 ) ÷ 936] x 100 = -33.76%
Formula
Percentage change = [(620 - 936) / 936] x 100
Subtract the new number by the original number
620 - 936 = -316
-316 ÷ 936 = -0.33760683760683763
-0.33760683760683763 x 100 = -33.76%