-53.33% is the change from 902 to 421
Calculation steps:
[( 421 - 902 ) ÷ 902] x 100 = -53.33%
Formula
Percentage change = [(421 - 902) / 902] x 100
Subtract the new number by the original number
421 - 902 = -481
-481 ÷ 902 = -0.5332594235033259
-0.5332594235033259 x 100 = -53.33%