-55.99% is the change from 902 to 397
Calculation steps:
[( 397 - 902 ) ÷ 902] x 100 = -55.99%
Formula
Percentage change = [(397 - 902) / 902] x 100
Subtract the new number by the original number
397 - 902 = -505
-505 ÷ 902 = -0.5598669623059866
-0.5598669623059866 x 100 = -55.99%