-17.11% is the change from 637 to 528
Calculation steps:
[( 528 - 637 ) ÷ 637] x 100 = -17.11%
Formula
Percentage change = [(528 - 637) / 637] x 100
Subtract the new number by the original number
528 - 637 = -109
-109 ÷ 637 = -0.17111459968602827
-0.17111459968602827 x 100 = -17.11%