-42.42% is the change from 917 to 528
Calculation steps:
[( 528 - 917 ) ÷ 917] x 100 = -42.42%
Formula
Percentage change = [(528 - 917) / 917] x 100
Subtract the new number by the original number
528 - 917 = -389
-389 ÷ 917 = -0.42420937840785167
-0.42420937840785167 x 100 = -42.42%