-21.64% is the change from 513 to 402
Calculation steps:
[( 402 - 513 ) ÷ 513] x 100 = -21.64%
Formula
Percentage change = [(402 - 513) / 513] x 100
Subtract the new number by the original number
402 - 513 = -111
-111 ÷ 513 = -0.21637426900584794
-0.21637426900584794 x 100 = -21.64%