-14.01% is the change from 621 to 534
Calculation steps:
[( 534 - 621 ) ÷ 621] x 100 = -14.01%
Formula
Percentage change = [(534 - 621) / 621] x 100
Subtract the new number by the original number
534 - 621 = -87
-87 ÷ 621 = -0.14009661835748793
-0.14009661835748793 x 100 = -14.01%