-37.08% is the change from 917 to 577
Calculation steps:
[( 577 - 917 ) ÷ 917] x 100 = -37.08%
Formula
Percentage change = [(577 - 917) / 917] x 100
Subtract the new number by the original number
577 - 917 = -340
-340 ÷ 917 = -0.3707742639040349
-0.3707742639040349 x 100 = -37.08%