-15.91% is the change from 635 to 534
Calculation steps:
[( 534 - 635 ) ÷ 635] x 100 = -15.91%
Formula
Percentage change = [(534 - 635) / 635] x 100
Subtract the new number by the original number
534 - 635 = -101
-101 ÷ 635 = -0.15905511811023623
-0.15905511811023623 x 100 = -15.91%