-31.95% is the change from 917 to 624
Calculation steps:
[( 624 - 917 ) ÷ 917] x 100 = -31.95%
Formula
Percentage change = [(624 - 917) / 917] x 100
Subtract the new number by the original number
624 - 917 = -293
-293 ÷ 917 = -0.31952017448200654
-0.31952017448200654 x 100 = -31.95%