-15.46% is the change from 621 to 525
Calculation steps:
[( 525 - 621 ) ÷ 621] x 100 = -15.46%
Formula
Percentage change = [(525 - 621) / 621] x 100
Subtract the new number by the original number
525 - 621 = -96
-96 ÷ 621 = -0.15458937198067632
-0.15458937198067632 x 100 = -15.46%