-15.89% is the change from 623 to 524
Calculation steps:
[( 524 - 623 ) ÷ 623] x 100 = -15.89%
Formula
Percentage change = [(524 - 623) / 623] x 100
Subtract the new number by the original number
524 - 623 = -99
-99 ÷ 623 = -0.15890850722311398
-0.15890850722311398 x 100 = -15.89%