-42.9% is the change from 902 to 515
Calculation steps:
[( 515 - 902 ) ÷ 902] x 100 = -42.9%
Formula
Percentage change = [(515 - 902) / 902] x 100
Subtract the new number by the original number
515 - 902 = -387
-387 ÷ 902 = -0.42904656319290463
-0.42904656319290463 x 100 = -42.9%