-17.03% is the change from 634 to 526
Calculation steps:
[( 526 - 634 ) ÷ 634] x 100 = -17.03%
Formula
Percentage change = [(526 - 634) / 634] x 100
Subtract the new number by the original number
526 - 634 = -108
-108 ÷ 634 = -0.17034700315457413
-0.17034700315457413 x 100 = -17.03%