-16.72% is the change from 634 to 528
Calculation steps:
[( 528 - 634 ) ÷ 634] x 100 = -16.72%
Formula
Percentage change = [(528 - 634) / 634] x 100
Subtract the new number by the original number
528 - 634 = -106
-106 ÷ 634 = -0.167192429022082
-0.167192429022082 x 100 = -16.72%