-42.53% is the change from 917 to 527
Calculation steps:
[( 527 - 917 ) ÷ 917] x 100 = -42.53%
Formula
Percentage change = [(527 - 917) / 917] x 100
Subtract the new number by the original number
527 - 917 = -390
-390 ÷ 917 = -0.42529989094874593
-0.42529989094874593 x 100 = -42.53%