-33.62% is the change from 934 to 620
Calculation steps:
[( 620 - 934 ) ÷ 934] x 100 = -33.62%
Formula
Percentage change = [(620 - 934) / 934] x 100
Subtract the new number by the original number
620 - 934 = -314
-314 ÷ 934 = -0.3361884368308351
-0.3361884368308351 x 100 = -33.62%