-67.45% is the change from 977 to 318
Calculation steps:
[( 318 - 977 ) ÷ 977] x 100 = -67.45%
Formula
Percentage change = [(318 - 977) / 977] x 100
Subtract the new number by the original number
318 - 977 = -659
-659 ÷ 977 = -0.6745138178096213
-0.6745138178096213 x 100 = -67.45%