-64.52% is the change from 902 to 320
Calculation steps:
[( 320 - 902 ) ÷ 902] x 100 = -64.52%
Formula
Percentage change = [(320 - 902) / 902] x 100
Subtract the new number by the original number
320 - 902 = -582
-582 ÷ 902 = -0.6452328159645233
-0.6452328159645233 x 100 = -64.52%